Need anime recommendations with dark psychological/thriller vibes

I’m looking for anime with suspenseful atmosphere, ideally psychological thrillers, I’m also open anything that keeps you on edge. (doesn’t necessarily have to be dark but don’t mind it either)

I’m not really sure how to describe the genre because the anime I’ve enjoyed aren’t all that similar, but they all have that tense vibe.

I feel like I’ve watched most of the popular ones, but I’m sure there are still some hidden gems.
example of some I’ve already watched already:

Monster
Death Note
Code Geass
Black Butler
Moriarty the Patriot
Darwin’s Game
Tomodachi Game
The Promised Neverland (Season 1)
Death Parade
Platinum End
Any recommendations?