Earlier quoted context omitted.
From my experience, here's the general lowest-effort way to find community: Make a list of public places that you like (bars, coffee shops, game shops, etc.) and go to them at the same time on the same day every week. You'll shortly start seeing the same people regularly, even if it's just the staff. Then you can greet those people, introduce yourself, and talk with them. By asking questions about their day, their pl…
This has absolutely never worked for me in cafes, not in decades of trying across multiple states. Cafe regulars either bring their own company or "laptops open, headphones on, heads down." Amusingly, the rec league pinball people are absolutely ferocious about promotion. Pretty much every thread in r/bayarea about looking for friends gets a pitch from a pinball person.
I think the best thing is to have a hobby or interest that has a local place where you can find other people that like it. Music is a good one, go to some shows by yourself and talk to people. Or tennis courts, a makerspace, some kind of special event, etc. You will already have something in common and something to talk about with the people there.