If you have already invested on crypto before you retire, And by the time you retire you have saved $100K for investments. Which is a lot i know, but it's the ideal capital to earn you good money when retired. Just by investing in crypto choosing the right coin will make you go money. Same as stocks, But in stocks earning a profit will take a while if you are looking on investing and not trading. But still, a good decision. And there's the last. Real estate, Here your risk is quite low because you have a steady flow of income, But problem here is you need to invest around $60-65k for a condominium or an apartment. It's quite expensive but i feel like in the long run it will make you the most money.