At present, the most popular thing in Beijing should be blue fitness. Mainly based on Thai boxing and Brazilian jujitsu, it is basically one of the highest levels in China. In the English environment, there are also many jujitsu masters with black and purple belts among the students. In Wangjing, you can directly search for blue fitness.

Secondly, you can go to Andy Jiu Jitsu Hall. Jiu Jitsu is quite basic.