Ancillary Income (also often called Other Income) from Vending Machines, EV Chargers, Shipping Container Farms, Solar panels and many other pieces of equipment is going to play a bigger part in commercial real estate revenue in the coming years. Rent can only go up so much before tenants start to balk at the high prices, but high quality services will always be necessary.
Check out
Micro Real Estate
for more information on how to increase ancillary revenue. You can also list your property to find vendors in your area.