I've always wanted a "friending" site. Basically a dating site, but to make friends. I work from home, have a couple of online friends that share the same interests as me, but none of my real-world friends do. I tried a couple of these apps, but I always felt the "friend" had ulterior motives. One friend I connected to, tried to sell me on investments, another I'm fairly certain was trying to hook up as if this were…
This is Meetup.com. (Or was before the pandemic; most groups I've looked at still haven't resumed, and who knows when the hysteria will ever subside.) It is easier to find people that share your interests and make them friends, than to make your friends share your interests. Meetup and perhaps local Facebook groups are the way in to that.
For companies that's chump change, but for a casual interest group it's too much.
Tried to migrate the core members to Facebook groups which is free, but there wasnt enough interest to keep it active. Friends with a few people still from it though.