Looking to start investing but don’t want to just leave it and ignore

Hello looking to invest around 23k, I don’t want to have to do much I just want to leave it in there occasionally add to it. Is now a good time to do this? Also any recommendations on where to put it. Was leaning towards a 401k with Charles Schwab auto investing option. But not really sure bc I’ve heard good things about VOO

I do not have much/if any knowledge in investing Thanks in advance