That I know of, both Germany and Ireland are very quick to issue work visas if you have a sponsoring company and both Berlin and Dublin have huge tech ecosystems.
None of those countries will have solvent healthcare systems when I'm old, so what's the point? By 2060, Germany's working age population, for example, will be 30% smaller than today. Who is going to bankroll their welfare state?
I don't think it's a foregone conclusion that none of those countries will have solvent healthcare systems. There are steps they can take to improve the currently dire future. And I would imagine that pretty much any projection will show a more favorable situation than the US over the next 30-40 years.
Given the choice between a system that looks unsustainable in the future versus one that is currently unsustainable, I'll bet on the future one.
Can anyone recommend countries that are easy to move to? With urban environments and culture, without being too expensive for cost of living? I have tech skills but am not one of the trendy rich engineers. I commit my free time to art, as it brings me life. Unfortunately, it is increasingly unable to bring me survival.