Well, you're in luck; they're releasing Baldur's Gate 3 in a few days ;P

There a youtube channel and a steam curator called Mortismal Gaming who loves CRPGs. Their shtick is also completing games at 100% before popping a review, and they are churning out new material at an amazing pace. Check it out for some decent coverage on the genre.

As for a maybe hidden gem, Age of Decadence looks pretty good. I have not played it yet, but the genre seems to match, and the premise is solid.

Expedition Rome is well appreciated too, even if it leans more toward tactical battles.

It's not hidden, but I thoroughly enjoyed divinity original sin II. If you don't want turn based combat it might be worth checking out the Pathfinder games.

Have you checked out Pathfinder Kingmaker and Pathfinder Wrath of the Righteous? Those are relatively new.

Have you checked out Caves of Lore? It's a great party based rpg with deep lore and created by a single developer. It reminds me of Jeff Vogel's work a bit.

Tyranny, Kingmaker, Wrath of the Righteous, Tower of Time. Also anything by Spiderweb Software -- my favorite is Geneforge

Solasta is a pretty faithful recreation of dungeons and dragons 5e, although the story/writing is not the best (may have improved in the later dlc, I've not gotten around to playing it yet). The combat is fun, though.