In fact, many Sanda organizations meet your requirements. There is no end to learning. I can recommend several units to you: the first one is Guizhou Kelin Sports Special Training Camp. It is said that it has more than ten years of training history in Sanda and Jeet Kune Do, and it is the leader of adult Sanda training institutions in Guizhou. The second is Happiness Martial Arts School, which may take a little longer, but it is mainly traditional martial arts, which is very good, and Sanda is mainly minors. There are also some fitness centers, clubs and so on. Check it online yourself. Baidu will have many "Guiyang Sanda".