I recommended avoiding IMO Talent Agency because they're founded upon scheming corruption and selfish lies, but are there any good talent agencies for us foreigners here in Tokyo? I compiled a brief list:
While at an IMO job, I met a fellow American that pointed me in the right direction by
referring me to Zenith. Zenith is the opposite of IMO―they asked for my bank information when registering (a good sign they intend to pay), they paid me exactly 1 month after the job, and they're friendly and pleasant to work with.
I haven't registered with Avocado, so I don't have personal experience with them. However, I've heard from others that they're professionally-run and respectable.
DAG Music is a talent agency primarily for musicians. I am finishing the registration process with them (I have to record my demo medley), so unfortunately I haven't done any jobs for them yet. Nevertheless, like the others, I was referred to them on the advice of fellow foreigners.
Ask others about the above agencies, and you'll probably hear good things. Ask others about IMO, and you'll probably get punched in the nuts / uterus. Best of luck to you, fellow foreigner!
Thanks to a very kind reader, here are some more respectable talent agencies: