I like Lemmy. Active development, lots of third party apps, active community, etc but what other Fediverse projects are worth getting into like this one?

For microblogging (Twitter), I know Mastodon is really popular but there are so many other microblogging options like Pleroma, Misskey, FireFish, etc that I don't know which one is really worth getting into (as a user, dev, or admin). Are any of these on par with Lemmy?

For video, there's PeerTube. The content isn't great at all and most servers struggle to pay bills. I think the YouTube replacement is a looong way to go.