I've never really had a hard time finding any Same-Sex pairings in RPs. They don't specifically advertise 'LGBT Friendly' but I think it's just an assumption. Honestly, if you put in a blurb about their sexuality, it'll attract other people of like minds.

It's like they come out of the wood work once they sniff the gay. We generally attract each other. But, I suppose it depends where you're looking. I really haven't joined an RP in which at least two characters aren't LGBTQIA+ and that's when I don't seek it out, explicitly. And this isn't talking about the group I generally roleplay with (of which there are 4-6 of us) because I know what sexuality their characters are. I'm generally talking about people I've only RP'd once before or not at all in the past.

Seriously, though, if you're worried no one's playing a character that might swing both ways, interested in anything, or what not, it's good to just ask or announce your own character's sexuality. It should never be the pivotal point of a character, but that doesn't mean it's not still important to who they are. ;p

Again, presume all RPs on here are welcoming to LGBT characters because it's likely 99% true. I've never had a character denied because I've explicitly stated that he's a gay character. I've never seen an RP that has totally barred any LGBT from the game. Generally, that'd likely cause a lot of backlash by a hefty amount of actual LGBT players on this site. If you go over to the Off-Topic area you'll see an LGBTQIA+ Hang Out and that's only a small portion of people on this site that are actually, legit LGTBQIA+ (there are an entire shit ton of us)