[drasticallyspeaking]

It's so, so difficult to know where you're going to mesh well with the look + personality/culture before going to a place. It's highly individual and subjective. I'd really just advise trying to do a trip where you spend 1-2 weeks each in all the countries you're thinking about in a region, and do that for all the regions you're thinking about, before committing to moving to any of them for an extended period. Sometimes you make a post like OP did here where you try to figure things out entirely before even setting foot in any of the places and you decide to go spend 6 months in the place that seemed perfect on paper, then finally when you go somewhere else you realize its 10x better for you and if you'd gone in without as many preconceived notions you'd have gotten to a better place for you faster. So OP, I highly advise avoiding reading too much into particular suggestions RE: Poland is best, or Vietnam is best, or Colombia is best, and instead try to spend just a week or a month in a few of these places because you'll quickly get a much better idea of how you feel about the looks, whether their personality and sense of humour matches up for you, etc.