In my opinion, there is no automatic trading system you can simply start and expect to make money, I am not aware of any single ATS that was designed for US500, but you can use many systems with tailored settings to run with any symbol or asset. Also, in the retail trading area you need trading skills to manage the trades, you cannot reply 100% on an automated trading system due to the nature of the markets. Take some time and read the article below.
https://clickalgo.com/algorithmic-trading-hard-facts