I like roboinvester accounts. You put money in, it automatically invests in stocks for you based on your current age and risk tolerance (which you can change whenever you like). I particularly like Wealthfront, and their app/website are really good. They’ll manage $10-15k for free, and then above that you pay a small fee out of your earnings for their service. If you use someone’s sign-up link, they’ll bump your managed amount by $5k. Comment back if you’re interested and I can share mine. Good luck with your investment, whatever you choose!