As I told my younger brother, if you don't know much about it, like index funds, ETFs, mutual funds, CDs, stocks, bonds, etc then research it. Don't invest your money in something you don't understand. You can read books or research online to understand but personally I think YouTube is a good place to get the basics down. I really enjoyed learning about Index funds from Our Rich Journey, they also have a video how to open and put money into a Fidelity account to start investing. With a Fidelity account you can buy index funds, ETFs, stocks, bonds, etc. But like I said, please research first so you know which you want to invest in.