Hey there!
I’m the GM for Safe Word and we’re LGBT+ (all minorities, really) friendly! My partner and I are GM and RL, and we have quite a few more LGBT guildies, and you absolutely wouldn’t have to deal with any of the toxic gamer crap here.
I’ll leave my long post, please don’t hesitate to reach out to me if you want to sync up 
If we’re not quite what you’re looking for, check out the Proudmoore server - they’re known for having a ton of LGBT friendly guilds
Good luck!