A lot of that would depend on their work-related skills and what languages they know (or are willing to learn).
As you've cited three countries that have some of the most inclusive immigration policies on the planet and called them xenophobic, I suspect you wouldn't be happy anywhere.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.