If I could move anywhere for a tech job, I will go with Hong Kong (a bit biased as I lived there once already). Technically, it is China but they have their own economy and Hong Kong is an awesome place. Yes, housing is expensive but everything else is cheap and quality of living can be outstanding. If you are single, HK can be a great place.
EDIT: I realized that my context was not clear when I talked about healthcare costs. I was assuming that OP may not have a regular job where employer covers most of the premiums. If the OP was on their own (freelancer etc), then the costs are definitely in the hundreds to few thousand per month. But even if you have employer sponsored plan, it can cost you a couple of hundred easily depending on the type of plan. If you are married with kids, then add more.