Which European country is the easiest to live?

Sweden. Sweden has some of the most permissive citizenship regulations in Europe, with no language requirements for new Swedes and only a five-year residency time required to become a Swedish citizen. 04-Nov-2022

https://globalrcg.com/easiest-countries-to-get-citizenship-in-europe/#:~:text=3.-,Sweden,to%20become%20a%20Swedish%20citizen.