Lots of good countries with non extradition to US where you can live well with some money.
Mexico is fine if you’re running from the average probation violation - the US isn’t gonna spend the resources to haul you back. But in this case it was high profile and he was like a Most Wanted fugitive.
Apparently these are among the “best”:
http://www.dailyfinance.com/2013/06/11/best-countries-no-extradition-edward-snowden-prism-nsa/