Sanda is a technology developed within the domestic system, and it is also the main competitive event of colleges and universities in various provinces. So there are a lot of materials in the teaching system, and you can watch videos. Sanda is three techniques of boxing, leg and wrestling, which are practical and effective.

Karate is also good, but there is less information.

Taekwondo has only one straight fist, no throwing method, no habit of protecting the head, and it is not convenient for actual combat because it only kicks with legs.