Finding supplemental income sources
 Hi,   I'm curious if there is a resource out there that allows commercial property owners(or visa versa) to find supplemental income sources that fit their commercial properties.  For example, perhaps their property would be a good location for billboards, washer/dryer services, a cell phone tower, or vending machine. I'm sure there are a ton of other types of income sources I don't know about. Is there a website/app that connects a property owner and those income sources?

Thanks.
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