Whats a good long term thing to invest in?

Hey everyone, Im brand new to this whole investing thing and I am quite young. I have been blessed to receive a one year contract job where i will be making really good money for my age. Im hoping to invest quite a bit while i’m working the job for a year. I have always heard of S&P 500 and a couple other stocks that tend to have a high return after holding it for a couple years. Wondering what you guys would do and where you would invest your money and for it to grow over a span of 5-10 years o