Responses
Rainbow city
Always fighting, secretly fucking; https://www.mangago.zone/read-manga/muka_tsuku_douryou_to_sefure_ni_narimashita/
Delinquent-esque x awkward kid with ESP;
https://www.mangago.zone/read-manga/bending_the_spoon/
Delinquents from different schools in a gang war;
https://www.mangago.zone/read-manga/kasenjiki_romijuri_kousou_kyoku/
Any bl/yaoi where the paring is like two people that are like the complete opposite or a couple that no one in the story would expect it
Examples:
Student Council x delinquent
Playboy x loner boy
Delinquent(School A) x delinquent (school B)
Fights every second(everyone knows) = sorta lovey dovey in private (nobody knows)