alt Hacker NewsThere are still several avenues for this, and I imagine they'll continue to exist even in a mostly-AI-enhanced world. You'll need to dedicate time to finding them.
For example, Battle of the Bits [0] is a community all about chiptune music. I'm sure you _could_ use AI to help you learn and produce some things, but the community is mostly about sharing ideas about what works at the electronic level, so even if AI became super capable, it wouldn't help you engage with the community in any meaningful way. There are several such communities across different domains and I imagine they aren't going anywhere anytime soon, regardless of how much improvement happens w.r.t. AI, since the focus is on "what you learned" and not so much "what you did".
Similarly, I have seen communities focused entirely on Silicon Graphics workstations, or pc-98 internals. Human passion-based communities aren't going anywhere, Google just makes it incredibly hard to find them outside of word-of-mouth.