Maybe God of Highschool?
Maybe u could try reading medical return but it only has a school part, its a cool worth it story thou.
Also I don't really know if you'll like this stuffs but you might want to try it.
http://www.mangago.zone/read-manga/the_descent_of_the_demonic_master/?XaGh - ah i don't know.
http://www.mangago.zone/read-manga/metropolitan_city_s_ying_yang_miracle_doctor/ - ah this one is in a school type of setting, dunno read a few chaps if u like
http://www.mangago.zone/read-manga/the_world_is_money_and_power/
http://www.mangago.zone/read-manga/versatile_mage/
Ps. I don't know if those would suit your taste but I'll just drop this here.
I messed up with the reply settings, sorry.
Waaahh thank you for replying. I appreciate it. I'll try reading those.
Can someone please recommend me an action manhwa with a strong high school male mc like lookism, weak hero and study group. Thank you!