Countries don't generally say "we will accept this group as a refugee" in advance. You really need to fly to a country and then apply for asylum. I have read that Canada has accepted trans people as refugees, and I'm trying to work out getting a friend here to Australia to apply.

Edit: To be clear, under international law, they can't send you back if Trump decides that citizens who have claimed asylum elsewhere will be punished, even if you wouldn't otherwise qualify.