I'm hesitant to jump into something, but I'm also currently learning Japanese. I'm struggling through reading some comic books and I have some simple but infrequent conversations in Japanese over the internet. If you're past the basics and on to trying to parse large or complex sentences I'd be happy to study with you.
For reasons mentioned in So8res article as well as for other reasons: studying with a partner can be very good. In November, Adele_L had posted an article for people wanting to find a study partner. It got 17 comments, but only 1 since November 16th. So I thought we (I) should make a monthly thread on this instead of constantly going back to an old article which people might (seem to) forget about. If people seem to agree with that, I will make a post about it every month.
So if you're looking for a study partner for an online course or reading a manual (whether it's in the MIRI course list or not) tell others in the comment section.