This seems like a rhetorical question, because it's as simple as a buyer going to something like Zillow and clicking through houses. Realtors are on their way out.
How does the house get on Zillow? Typically, they get that from the MLS. The way you get a property into the MLS is via Realtor. Without a Realtor, you don't get into the MLS.
I can't even get my house into the MLS without using a Realtor, and I'm currently logged into the MLS database server running updates. ;-)
Just curious, how are you going to advertise your property to real estate agents and consumers in your area?