The Unitarian Universalist United Nations Office claims to be the only religious voice at the United Nations advocating for gay, lesbian, bisexual and transgendered persons, or in their lingo, Sexual Orientation and Gender Identity (SOGI) work. I believe them and wish there were more sharing in their labor. (Anyone? Please. Or correct me if I'm wrong or misunderstood the claim.)
I'm a member, joining when I was last in New York and impressed by the hard-working staffers in their tightly packed UN-adjacent digs. I think you should join, too. Give generously. The UU-UNO is surely the highest value organization most Unitarian Universalist don't know about.
But I'm sure there are other vital organizations that support, encourage and defend BGLT/SOGI people, particularly in the Caribbean and the African continent, where so much bad news has recently come.
Do you have a favorite, and if so, what makes them so valuable?