Best allocation for someone with a traditional job or 401k.

I mostly do entrepreneurial stuff and I do not have a traditional job. I Mostly real estate flips and wholesaling. I do have a brokerage account. What would be the best long term allocation that I can just invest in and forget long term (or at least as hands off as possible so I don’t have to move around and a trigger a bunch of tax events). Ideally I would like something that would give me a little bit of dividends, and still grow a little.