Vancouver, WA, USA is a spot that you may want to consider. It is a very fine city in itself, with low crime rate, and a high level of prosperity.
It is in a very scenic area, with much to see and do nearby. The climate is temperate, with no uncomfortable extremes. It is quite wet, but has less average rainfall than Boston, for instance.
Tax wise, it is great. WA has no state income tax, and Portland OR, just a quick drive over bridges, has no sales tax. Portland itself is an excellent city. Neither place has any of the problems that plague so many US cities.