What We Do in the Shadows

I'll bite on this a bit. My patience for sitcoms is perhaps a little higher than average because I have a fondness for stuff like Cheers.

1. The Good Place - While the politics never get truly revolutionary, this sitcom does a very good job with pop philosophy and some decent twists along with good performances.
2. Baskets - Mostly the vision of Zach Galifianakis, this one kind of fell under the radar because it also had Louie CK on the creative team during his exposure as a creep. He never shows up in front of the camera, so your milage may vary on this sadcom and whether you can deal with him being involved.
3. Wet Hot American Summer: First Day of Camp - David Wain and basically of the State alums can do no wrong. Absurdist humor played straight or melodramatic has a good sheen of satire at its heart. The follow-up series, 10 Years Later, doesn't hit quite as hard, but for fans it's still a must watch.
4. Bob's Burgers - Don't know if you allow for animated shows to be true sitcoms, but I think it qualifies. Family comedy that constantly errs on the side of embracing being weird and an outcast. Occasionally too saccharine, but not that bad. If you want something a little different, but in the same vein, many of the creatives behind this one worked The Great North, which is also pretty good.
5. Broad City - Despite the Hillary episode, this is genuinely a really funny slice of life show. In fact, I tend to view the Hillary episode in the lens of both of these women have been established as absolute messes that can do nothing right, so of course they are completely in the bag for Hillary Clinton.
6. Catastrophe - Just the first season. It was clear Hogan and Delaney had something to say, said it and then found they had more success with it than they thought and came back for a bit of a mess for the second season. But if you like romcoms, you owe yourself a viewing of this one.
7. The Righteous Gemstones - Almost more of a prestige TV series than a sitcom, you can't talk about comedy in TV in the last ten years without mentioning Danny McBride. I think this is his best work, but Vice Principals, which also meets the criteria of being in the last ten years, is also an incredible work.
8. Party Down - Technically the third season came out in the last ten years. I'm stretching here a bit, but I think this show deserves all the accolades The Office gets.

Sadly, this form really peaked with Arrested Development and 30 Rock. I feel like as more people turn to short form video for laughs, the sitcom dies with that. There's also been a real drain on TV shows having consequences or friction, which is usually the most fertile ground for comedy. Look at shows like Ted Lasso that cannot allow a single character to be antagonistic for any long period of time. Ted eventually wins everyone over (even himself). There's a lot of that in TV across the board, but it's a death knell for the sitcom.

Toast of London (and Toast of Tinseltown, I guess)

Ghosts (the BBC one, not the American one)

Our Flag Means Death

The Completely Made-Up Adventures of Dick Turpin

Letterkenny.

I've really enjoyed Kim's Convenience, from Canada.

Abbott Elementary - Mockumentary style sitcom about teachers in a US public school.

Brassic - more of a drama comedy, but you know, wikipedia is willing to list it as a British sitcom. It's about a very broke guy with bipolar doing petty crimes with his buds, and is truly top notch.

Cavendish - Canadian sitcom about two brothers returning to their hometown in PEI for the first time since childhood.

Dead Pixels - British sitcom about a gross gamer girl obsessed with an MMO.

Derry Girls - Irish sitcom about teen girls in Derry during the Troubles.

Detectorists - British sitcom about two guys whose life passion is their hobby as metal detectorists.

Everyone Is Doing Great - not entirely sure if this is quite a sitcom, but it's about two actor best friends who used to be heartthrobs on one of those vampire supernatural romance shows, but now they are struggling to have careers after the show.

Friday Night Dinner - (first aired a little over a decade ago, so this is pushing the limits of your request, but it ran for years) each episode is a different Friday night dinner for this Jewish family in Britain, with a big focus on the friendship/pranking of two adult brothers.

Go On - (also a bit over a decade old) guy joins a grief group after his wife dies, and the group is an eclectic bunch.

Mohawk Girls- Canadian sitcom about Mohawk girls on the rez.

Nirvanna the Band the Show - Canadian sitcom about two guys who want to play a gig at the Rivoli (famous Toronto venue) but don't actually have a band.

One Big Happy - Lesbian and her best guy friend/roommate decide to have a baby together.

Plebs - British sitcom set in ancient Rome, pretty goofy but I have no idea what you consider "good" in terms of a sitcom.

Single Parents - this one is like the name suggests; a group of single parents who all sort of work together to watch each other's kids and in the process become friends.

Vice Principals - two teachers compete to become principal of the high school they teach at (which also requires them to conspire to unseat the current principal).

Wilfred - This one is a remake of an Australian sitcom, but Elijah Wood plays a guy who tries to commit suicide and then starts talking to his neighbour's dog who appears to him as a grown man in a dog suit.

I haven't watched this one yet, but Rob Wells (Trailer Park Boys) has a new one this year called The Trades about working in an oil refinery.

Are we considering Star Trek: Lower Decks a workplace sitcom? If so, please consider.

Avenue 5: Starring Hugh Laurie. A space cruise ship gets knocked off course and whacky hijinks ensue. It's made more complicated since the billionaire moron on board who owns the company hired a bunch of actors/celebrities instead of an actual crew to steer the ship.

Silicon Valley: Juuuuust turned 10 this year. A group of programmers discover a new compression algorithm that quickly becomes the target of venture capitalists.

Crazy Ex Girlfriend: I would have recommended this years ago, but now say avoid it because Rachel Bloom is a zionist who's too chickenshit to say it. She has done charity events for Isreal even after October 7th. Some of the cast have come out in support of Palestine, but Bloom plays the main character and has the majority of screen time.

Community: A lawyer who lied about completing his undergraduate degree to get into law school has his secret discovered. He now has to attend community college to earn his bachelor's or else he will be disbarred. A lot of memes here on Hexbear are from this show.

Bojack Horseman: Washed-up actor Bojack Horseman tries to get his shit together after a lifetime of bad decisions and regrets. It's funny as hell while being completely soul crushing with plotlines about mental health, addiction, abuse, and love. Some absolutely banger lines and superb writing that will stick with you the rest of your life.

Hacks: Former comedy superstar Deborah Vance is now much older and doing the same routine every week at a Las Vegas casino. Her spot is now under threat as her shows aren't bringing in the numbers they used to decades ago. A young Zoomer gets fired from her writing job in LA after tweeting a joke in poor taste. She and Vance have the same agent who decides to pair them together so they can salvage their careers. Initially both women hate each other but realize they're the same person in two different bodies born in different time periods. It's The Devil Wears Prada with some Seinfeld.

The Other Two: Teenager Chase Dreams becomes an overnight YouTube pop music sensation. He's immediately signed to a record label and quickly goes platinum as his debut album climbs to the top of the charts. However, his brother and sister are about a decade older and both are struggling to have careers in anything. Even their mom has more public clout. The show follows these two millennial fuckups as the rest of their family is showered in praise and superstardom.

The Baby: An evil baby finds his way into Natasha's life and causes catastrophe everywhere he goes. She can't get rid of him because she's the only one he doesn't seem to curse. Now, poor Natasha is stuck looking after the Antichrist.

"The Office Movers" came out this year on some channel I never heard of. maybe Canadian. anyway, it's available on the high seas and cracked me up from start to finish. I hope they do a second season.

It would be helpful to start with what you think is good in a sitcom. If you just want "what do people like most" then on balance the answer is 2 1/2 Men and Big Bang Theory, but I'll make the bold assumption that "unalloyed slop" is not in your set of good properties.

Detroiters got cancelled after only 2 seasons but is still well worth the watch

I don't know if these count, but:

Happy Endings: a great ensemble comedy that got overshadowed by the lesser "New Girl".

Other Space: a 1 season sci fi comedy masterpiece by Paul Feig that got thrown into limbo when Yahoo Screen went bankrupt. If you can find it it's so good.

Future Man: time traveling warriors from the future find a not very successful guy who beat a difficult video game that was actually a test to find the savior of humanity from a future devastating war. Great cast, great writing (kind of gross maybe). Check it out!