I kind of struggle with this. Feeld has really been the only positive source of ENM connections in general, platonically and romantically, which is kind of what I'm looking for rn. I recently moved and I wanna build friends and a support network, but Feeld not exactly designed for general connections, it's very slow.
I found a local meetup just recently, I guess my hope is that will help!
So I suppose my suggestion is try feeld if you haven't already. It's got a lot of great people in my experience but it's very buggy
Shame there's not more UK ones on there :(