I am starting to step outside the matrix of billion-dollar businesses. Those generally fit to a VC’s economic structure needs and not an entrepreneur’s wants. 

IMO an entrepreneur has a log utility of wealth. Small biz has much higher relative EV when taking log utility into consideration.

What qualities such biz should have?
Sustainable, small team, profitable, like bootstrapping, or self-employed?

Building coNFT.app. Web3 Investor. ex-Media Director @ Dodo Brands, ex-KPMG

Yup, bootstrapping if possible. You are not beholden to interests that could misalign with yours then