[niklearnstodev]

Personally: -sports: climbing gyms/trips/facebook groups/etc, bike groups (not exclusively biking alone), hiking trips, etc

Anecdotally: -drama clubs/local theatre productions -run clubs: while running is typically fairly isolated, there are social run clubs in cities that often go for a drink (no booze necessary) post-run -book clubs: random collections of people that discuss a book together -dinner clubs: sharing food with folks in a way where different people cook for others in turn -partying: most places have a community of folks that enjoy dancing and/or recreationals

Note that I believe that the strong relationships can come from overcoming a shared struggle, so if you can think of something that's difficult and with one or more other person/people, you will probably form a community around it over time (co-founders and cohorts are a great example).

[ghaff]

At least on the coasts, clubs that do outdoors activities are fairly common. Doesn't need to be hardcore. There's the Appalachian Mountain Club in the Northeast US which dates to the 1800s. There are (unsurprisingly) at least a couple different Northern CA/PNW clubs though I'm less familiar with what they offer.