if you buy a call option and pay let’s say $500, that is the most money you can loose no matter what happens. It’s like trading with a hard stop but more reliable. Again, I don’t want to suggest you trade options, just an alternative when trading small/test account.
Buying a naked option has risk limited to the amount you pay in premium up front to own the option.
I see that there are options on the SPX. Maybe an alternative to the ES?