Still there are index funds in Europe, 401k equivalents and you can buy international stocks. What kind of stocks do you need for your personal financial plann

Still there are index funds in Europe, 401k equivalents and you can buy international stocks. What kind of stocks do you need for your personal financial planning, that you cannot get in Europe? I have heard nice things about Vanguard on HN, but so far have not had any troubles with iShares and the like.