The Android rom ones like xda forums are active.
This is definitely not what you’re looking for but college sports forums are active if you want to read the dumbest shit ever.
I’m from Louisiana so I’ll pick on my own team and link to to Tiger Droppings:
https://www.tigerdroppings.com/rant/lsu-sports/
The recipe posts are actually good. It’s basically a forum for insane people who get mad about LSU gymnastics recruiting but then post an alligator sauce picante recipe that’s better than anything you’ve ever put in your mouth.