I’m not situated in Tokyo and do not know, however you possibly can strive the next websites. Relatively than coaching, it’s in all probability a matter of taking part in doubles:
Tokyo Badcox – Worldwide Badminton Membership (東京都, 日本) | Meetup
Badminton – Tokyo Gaijins
One different level is that Japan is at present not allowing vacationers to enter the nation. Here is hoping that this may change earlier than August, however there isn’t any assure of this occurring.