Which stocks can I start trading in for under $100?

When starting with $100, it would be best to invest in penny stocks that hold a lot of promise for the future. Cryptos are also a great idea in my opinion, as it's best to invest that amount into something volatile. My precise advice would be doing your research and consider investing $20 each into 3-5 cryptos. Ethereum, Litecoin, Cardano, and Monero are all great options for a beginner.

Still, remember that these cheap cryptos/penny stocks are volatile, and you might see a 40% drop on a single day. I think it's a good idea to hold them for at least 6 months before withdrawing, as you'll almost certainly have made a profit thanks to diversification.