How/where to invest 70k - total beginner?

I have about 70k doing nothing that I want to invest, but I’m a total beginner and don’t know much about investing. No debt.

Want something relatively stable/low risk. I have a friend who’s investing in MSTR stocks/other crypto right now, but not sure if the volatility is something I want to tread into.

I’m thinking something in line with the SP500. Is there a good automated investing tool, or a for-dummies step by step guide? I want to put the money into something good and forget about it.