I’m looking for mangas or something similar, genres all except: Shounen Ai, Shoujo, Josei, One Shot, Doujinshi, Yaoi.
Preferably something similar to Boys Abyss.
Or recommendations from you . Thx
They're not very similar, but imo they share the same theme of fucked up town ruining the lives of its inhabitants:
https://www.mangago.me/read-manga/soil/
I think these are more similar if you want psychological manga though:
https://www.mangago.me/read-manga/aku_no_hana/
https://www.mangago.me/read-manga/mad_miniscape/
https://www.mangago.me/read-manga/chi_no_wadachi/
Manga search with a dark main character, or evil main character, or something like revenge stuff thank you in advance