The Netherlands probably, but with the massive grain of salt that I suspect that choosing a "ideal place to live" without actually having been to that place is likely to result in a skewed idea of what a place is truly like, and as I've never been outside the United States I have that issue when thinking about any other country. I also doubt they or anywhere else that might make my list of ideal places would want me, seeing as I'm just some random factory worker without any especially rare skill.