I moved out of Poland when i was 16 and move to the UK, it was not my choice but i kinda like it here. Might move in the future but im not planning it at the moment
I do like the US because of the diversity of the Country, i mean there are such differences beetween different parts, and the Americans i met at University were very safe. Canada seems pretty peacefull and chilled out so thats an option
Also like Japan it just seems like a cool place to live.