@zimowski
First, you should put all of the #hashtags you're following in your #profile, and follow the people who regularly #toot those hashtags.
Next, follow the people whose toots are frequently boosted by the people you're following (hint: If you see a boosted toot, someone you're following boosted it).
Then, whenever you see a toot that you enjoy, be sure to #favorite, #boost, and #comment on it.
And finally, keep doing all of the above on an infinite loop until your network is large enough to keep you #informed, #connected, #entertained, etc.
Remember, there's #NoAlgorithm here to show you stuff that "it thinks" you might like. You have to #TakeControl of your own destiny here. Leveraging your #CommonInterests with others is a great way to immerse yourself in any new culture, even if you don't actually know anyone there yet. If you're #friendly, #curious, and #engage enthusiastically with people here, you'll find your network growing quickly before you know it.