Most chinese dramas have strong female lead, but if you want them to fight:
Perfect couple (Not a gang member, but her fighting skill is great and she always protects the guy)
Destined to love you (Not a gang again, but she is so smart and brave and strong, she is skilled in many fields that even military guys can't do them, so all men in military respect her)
Moon River (She is so skilled at martial art, and she always fight against bullying )