Just don’t buy on margin. Puts have limited potential gains, but if bought on margin, can have unlimited loss potential. You can place covered calls. Which also have limited loss potential, but limited gains too. Call options are the most fun though. If you want to gamble, do some research on a few cheap stocks and buy some cheap 6 month to long calls. If you use RH, the options chains are preset, and you can scroll through them. If you use an online broker though, you can create you own options chain, but there’s no guarantee it will fill.