Not Baji but I would recommend Patrick Kelly's taiji school in Shanghai if you're going to regularly be there:
https://9cloudstaiji.com/They might be less enthusiastic about people just passing through but for people regularly there, it may be one of only opportunities for new people to train with PK these days (he has hundreds of students with him 20-30+ yrs and is 72 and mainly focusing on those, though he has spent quite a bit of attention for youngsters in Shanghai because that's his latest/main school effort for past 10 years)