@Carlos Ptriawan in a few minutes whipped out a post on self storage which I am familiar with.  

I'm particularly passionate about real estate hot market area.Outside of real estate, I enjoy DIY hobby that can improve property value, as growing houseplants, painting, and storage organization.Excited to learn and connect with you all!

Larger gravel spaces, concrete pads with picnic tables, small storage sheds included in each lot. 

That is the concept how things like rows of apartment garages and storage units can be laid out in areas with lots of grade change. 

At first, we talked about Airbnbs (especially their profitability at the time) and self-storage units.

. - Types of assets with common seller carry potential include SFR's, Multi family (small balance) complexes, industrial or warehouse space, RV or Mobile home parks, storage facilities and vacant land. 

Then self-storage, syndications,  you get the idea.  

I'm looking to invest in self-storage in the smaller cities and towns surrounding the Twin Cities area and am debating between two options: buying land and building a new facility or purchasing an existing one.

In my case, I have residential rentals in one LLC, commercial properties in another, self storage in a third, and my real estate company operates in a fourth.

There are endless things you can sort by so you can creat your very own list.