There's no real reason to learn Finnish other than curiosity, so I'm not surprised there's no community around learning it. You can move to Finland without knowing the language at all, since everyone else around you will happily speak English with you. Hell, you can even get Finnish citizenship as long as you learn Swedish instead. And when a language is spoken by around five million people, there's no large amount of creative works only unlocked by learning the language either.

(I'm a native Finnish speaker)

There absolutely are communities around learning Finnish! /r/LearnFinnish has 40k members and get daily posts, plenty of FB groups etc too.