Danganronpa. (the games, not the anime) It's hard to defend in some places, with its abysmal minigames, nonsensical plot, and anime tropey story that gets very uncomfortable and insensitive at times. I am also of the opinion that to be cringe is to be free, but it's one of those franchises with an online fanbase that turned me off of the entire thing for a long while.
But, when I was encouraged to actually give it a fair shake, I enjoyed it a lot. At its best moments, there's some solid murder mysteries surrounded with entertaining characters and a tense atmosphere. Camp doesn't excuse the worst parts, but it definitely makes them suck a little less.
The third game in particular gets a lot of flack for its ending and I get it, it's not a very satisfying conclusion for the characters or universe and a little up its own ass. But as a reflection on the franchise, I do see what they were doing and thought it was interesting - probably more interesting than if we got actual answers for the worldbuilding questions it bypasses.
Definitely skip the anime covering the first game's events, it's way too compressed and just heinously awful in a lot of ways. Can't speak for the other anime series, the movie, or the books, though I'm still interested enough to give em a try sometime.