I kinda want to give some recs to you, but somehow I can't find black hair top x blonde bottom that's both in highschool (?). Yet, I think Ore wa Omae no Ai de Itai ( https://www.mangago.me/read-manga/your_love_hurts_me_tender/) is the closest one I can give recs to you.
It's age gap story, but both of them the yankee/delinquent types, but it's still not fully translated (you can read it in mrm for up to date or just search in google)
Hope it can scratch a little bit of your craving hehehe ✧◝(⁰▿⁰)◜✧
https://www.mangago.me/read-manga/double_face_niha_kanawanai/
https://www.mangago.me/read-manga/tategami_ni_airabuyuu/
https://www.mangago.me/read-manga/hetare_to_bakatare/
https://www.mangago.me/read-manga/henkutsu_na_yankee_kun_o_hottokenai/
https://www.mangago.me/read-manga/shinobeba_koi/ ex delinquent
Delinquent blonde uke
https://www.mangago.me/read-manga/terano_kun_to_kumazaki_kun/
https://www.mangago.me/read-manga/muchuu_ni_naruu_yo/
https://www.mangago.me/read-manga/the_omega_takes_a_husband/ yakuza
THIS IS AMAZING TYYY
U the goat omg
Enjoyy
Black haired top blonde bottom and both like delinquents recs PLEASSEUH