There's one I really like but ya might not like the art style.
https://www.mangago.zone/read-manga/it_s_mine/
I have a few mangas abt this, if u don't mind manga
https://www.mangago.zone/read-manga/maria_no_danzai/
mom's revenge
https://www.mangago.zone/read-manga/ijimeru_aitsu_ga_waruinoka_ijimerareta_boku_ga_waruinoka/
male teacher's revenge to his student's dad
https://www.mangago.zone/read-manga/koisuru_psycho_no_shirayuki_kun/
very interesting. Mc got rid of the bullies for the guy he likes
https://www.mangago.zone/read-manga/jaa_kimi_no_kawari_ni_korosou_ka/
same as above. Except there's a conflict here
https://www.mangago.zone/read-manga/weak_hero/
mc is scrawny but he manages to beat up his bullies
https://www.mangago.zone/read-manga/the_devil_s_boy/
manhwa, and it's abt the mc, selling his soul and make a pact to the devil too
https://www.mangago.zone/read-manga/true_education/
cool teacher
https://www.mangago.zone/read-manga/shotgun_boy/
idk how to explain but this is goooodddd
Bullying/revenge tropes like “save me”??