Like physical or mentally strong?
http://www.mangago.zone/read-manga/love_in_the_mask/ a lot of this authors stuff is
chicks fighting
Some of these are historical school settings
http://www.mangago.zone/read-manga/divine_damnation/
http://www.mangago.zone/read-manga/the_villain_discovered_my_identity/
http://www.mangago.zone/read-manga/white_blood/
http://www.mangago.zone/read-manga/irregular_empress/
http://www.mangago.zone/read-manga/crimson_karma/
http://www.mangago.zone/read-manga/aidin/
http://www.mangago.zone/read-manga/north_by_northwest/
http://www.mangago.zone/read-manga/reminiscence_adonis/
http://www.mangago.zone/read-manga/god_bless_you_webtoon/?K1ji
http://www.mangago.zone/read-manga/h3_happy_hustle_high/
http://www.mangago.zone/read-manga/saver/
http://www.mangago.zone/read-manga/kamisama_gakuen_armeria/
http://www.mangago.zone/read-manga/crazy_girl_shin_bia/
both is fine
TYSMMM<3
fl that fights alot or is strong in general preferably theyre in school but its not a must tho