Where can I learn Sanda in Longgang? (Other martial arts will do. )

There will definitely be, but it is a question whether people will teach you. What's more, you have to look at your own eyes. If you have a good eye, you can find a master. It's hard to say if you have a bad eye. I'm also practicing Chen Taiji's new one-two-way, pushing hands, Sanshou, grabbing and single sword. The cost of learning boxing is probably higher than that of 800 yuan, like the new one-way.