You can individually hunt for such countries where you could get free education and medical support but why are you willing to shift in those countries if you could make a passive source of income from your residential place?

There are a number of platforms which might offer you a stable source of income and if you want to take least efforts in making some source of income than I might suggest you to start copy-trading offered by platforms like eToro or something similar where you could just invest a specific amount of money and can watch you capital grow as long as the trader you are copying is actively trading and earning some profits for you.