I agree with the above.This has been discussed dozens of time and, unfortunately, there is no simple answer. Best is a personal choice and the availability of zero tax can depend on what type of income it is (salary, dividends, pension, royalties, other capital gains).
Living in Costa Rica, Monaco, Bahamas, Thailand, Mauritius, and Hong Kong are very different from each other. What do you want out of life?
Do you want only zero tax options or are you open to low tax burdens?