Code:Breaker, Kenka Banchou Otome: Girl Beats Boys Recommendations
-Strong MC (knows how to fight)
-reverse harem i think??
In Kenka Banchou Otome the girl pretends to be a boy and goes to the delinquent school for his twin brother sake and beats everyone and become the boss. While in Code breaker the girl doesn't pretend to be a boy but also strong. She beats other guys even thought she is a girl..
If you like strong female lead, like in KBOGBB, you will also like code breaker.