If you liked
Tokyo Ghoul:re
|
...then you might like
Happiness
|
Both the main characters undergo huge changes in their lives, and having to deal with it, whilst at the same time having to live with the knowledge that they are 'monsters'. The main characters are slightly alike.
If you liked
Elfen Lied
|
...then you might like
Gokukoku no Brynhildr
|
Both anime's are pyschological thrillers that are written by the same person (Lynn Okamoto). Both animes have girls with special powers. Both anime's have lots of gore and horror scenes. My personal opinion on the two is that they are similar because of the main male lead and they both have very comedic romance scenes.
If you liked
Tokyo Ghoul
|
...then you might like
Kiseijuu: Sei no Kakuritsu
|
Both anime's have man eating species and both main characters get into disturbing and horrible situations. They are a lot a like!
If you liked
Sword Art Online
|
...then you might like
Btooom!
|
Similar scenario, man gets stuck in a game like arena, meets a girl a few episodes in. One problem, this anime hasn't (and probably wont) finished.