recommend

Dark revenge type stories (Warning: contains dark themes/images):
Misu Misou
Save Me
Zenaku no Kuzu
Miss Guillotine
Brutal: Satsujin Kansatsukan no Kokuhaku
Unhinged
Berserk
Monster

Same vibe
https://www.mangago.zone/read-manga/when_night_falls/
https://www.mangago.zone/read-manga/the_hero_who_seeks_revenge_shall_exterminate_with_darkness/
https://www.mangago.zone/read-manga/shin_ai_naru_boku_e_satsui_wo_komete/
https://www.mangago.zone/read-manga/funouhan/
https://www.mangago.zone/read-manga/maria_no_danzai/
https://www.mangago.zone/read-manga/from_the_red_fog/

thank u