Almost all of the EU countries have citizenship by investment. Almost all of the other developed countries have this too. It's just the numbers might be large

Almost all of the EU countries have citizenship by investment. Almost all of the other developed countries have this too. It's just the numbers might be larger and there is a bit more of a waiting period as you go from permanent residency to citizenship. If your a very wealthy person where playing these border hopping games can save you taxes, then the citizenship stuff doesn't really matter unless your american. You could do with with a resident visa/permit and then just immigrate to the country normally. You just have to be non-resident in your high tax country of origin.