Hii can some one recommend me some sick yaoi? Idk smth high quality, mind-twist like killi...

Not as twisted but still a very toxic and mind twisting BL (also very high quality) "Hwang young's misery"

https://www.mangago.zone/read-manga/how_to_raise_a_victim/
https://www.mangago.zone/read-manga/invasion_of_the_moonlight/
https://www.mangago.zone/read-manga/the_edge_of_ambiguity/
https://www.mangago.zone/read-manga/the_abyss_1/

https://www.mangago.zone/read-manga/heaven_instance_dungeon_steal_the_handsome_guy_s_heart/

https://www.mangago.zone/read-manga/feeding_lamb/

Black mirror

https://www.mangago.zone/read-manga/non_zero_sum/

harada's manga

https://www.mangago.zone/read-manga/ouroboros_1/

https://www.mangago.zone/read-manga/heartless/

Loved it! Thankss