A QOZ must earn a minimum of 50% of its gross income on an annual basis from QOZ business activities.

If so, flipping or active investing would be ideal.

David Ramsey talks about stocks, mutual funds, etc.. whereas I made my money by being an active investor in real estate.

Don't know if @Joel Owens is still active on the boards here, but he knows all there is to know about triple nets. 

While it provides a steady income stream and potential appreciation, it demands active management, thorough tenant screening, and may involve higher vacancy risks compared to traditional leases.

Stay active on the forums.

This really means, what tax return reports the activity of the property.

For example hang drywall is a 3 day activity tape and mud five days.

I can sub out all the PM activities, leaving the "business" to me.  

Currently flippers are much more active locally than buy and hold