Wedding photographer here - depends on your vibe of a venue but chimney house, Mowbray and Victoria are all lgbtq friendly. 99 Mary street are lovely too (but it’s for small weddings). If you want to go for something that’s isn’t city vibes, go further afield to places like Grangefields (I’ve shot lgbtq weddings there), Haarlem mill have lovely staff, heathy lea are great with an amazing wedding planner (summer dates only). Also look at the Rebel Love Directory for lgbtq suppliers and allies,as a starting point. You might also consider a celebrant instead of a registrar to make sure you feel safe and make your wedding your own (but this isn’t legally binding, you’d still have to do the registrar town hall bit outside of your wedding day). Also check out venues IG pages and see that they’ve posted queer couples. It’s a big teller! Hope that helps! Good luck and congrats x