There is no safe country. There are countries that are safer than others but especially in the West, nationalism and fascism are on the rise and queer people will (and already are) falling victim to it.
The best way to prepare is to seek a strong queer community, and volunteer to help it stay strong and healthy. Even under a fascist government you can be happy, you must only find the right people to surround yourself with. Humans are resilient, and especially queer people (especially queer ethnic minorities and queer people of colour) have lots of experience with surviving under repression.
While you’re at it, join a workers union too because workers rights are just as fragile as queer rights.