The us is fine, as long as you pick a conservative state.
Has nothing to do with politics btw, red states tend to have lower taxes and nicer people, blue states can be nice, but tend to be more expensive due to taxes and have other misgivings i won't talk about.
Other good nations would be some south american nations, though those require you to have a bit of money, argentina for example.
Australia can be great as well, but the government is almost as bad as canada's.
We had a world without the usa getting involved in everything, and it led to the 2 bloodiest wars in world history, you can dislike the us all you want, but if the us went away tomorrow the world would catch on fire with invasions, genocides and war, the us acts as essentially a police force on the world stage and that keeps some of the worst possibilities for the world from happening, love or hate the us.