Tokyo Japanese language school for part time study

Hello sorry for this I feel like this is a dumb question but I've had a search on the sub and couldn't find anything.

I want to find a part time language school (online or physical) where I can pick up conversation classes specifically business Japanese. I passed n2 by myself a few years ago but I've gotten stuck and can't improve my work place communication skills without support.

I attended coto academy last year but it was shit. I also interviewed with benesse but the cost was really high and not much they could commit to doing. I was looking at Akira and ISI but I'm not comfortable without recommendations from people.

Most my friends have online tutors but they've been in Japan longer than me and still can't do more than order coffee so don't instill confidence in the tutor capabilities.

Sorry to ask but I'd appreciate support in finding a school.

by hisokafan88