Don't dox yourself, so feel free to not reply or dm me, but what part of the UK are you in? I don't actively know anyone who lives there, but I spent a weekend with someone from Bristol and I'd bet money she was involved in cool queer stuff in her area.

The band Martha ( https://marthadiy.bandcamp.com/album/blisters-in-the-pit-of-my-heart ) are queer and from Durham.

I bet you could use Bandcamp to find music in your area and from that find people. Most bands tag themselves with their city origin, and maybe tag themselves with queer.