I have actually come closer with hiking clubs than anything else, and might have managed if I'd been able to go more often and see the same people (so a local hiking club in the US is probably better odds than a somewhat incoherently run club that's half expats and half locals, the former of whom often appear for one or two hikes and then vanish) - people tend to talk about a lot of different things, and if you run out, you can admire the scenery or drink some water or talk to someone else. Plus you get to go hiking! (I'm not an enormous fan of group hiking and mostly do it because of transportation limitations, but it can be fun with a good leader.)

Yeah - I know some people talk about fandom with their therapists, but...I would find it very, very difficult also, and if you're talking around a big part of your life there's that question of how helpful the therapist can be. If only there were a way to find fannish therapists... :P Although given fandom's drama tendencies, idk if that would be a good idea!