Taekwondo, girls, of course. It is good to be a lady in front of people and be gentle, so Sanda and judo are not suitable, because they are violent, require strong strength training and are easy to get hurt. If they are broken, that's too bad. Taekwondo is different. It uses the most legs and few fists. Practicing more legs can not only slim down and keep a good figure, but also the strength of Taekwondo is very good when practicing with a black belt. General self-defense is enough. It is better to recruit a few women for self-defense.