What is the best way to make sense of the alternative federated communities? - RedditMigration to the "Threadiverse" - kbin.social

It's a little daunting to me that in some cases there are 2 or more communities between the federated alternatives; what's the best way to corral these? I had thought I could perhaps subscribe to Lemmy instances on kbin; is that correct? If so, how? Thank you in advance....