I honestly just kinda want an "ad shopping site" to discover new brands. Like let me post a description of an item I'm looking to purchase and then companies reach out to me with what they've got.
Like, I'm reading cooking recipes and might actually be really interested in this fancy cooking equipment or specialized book on the topic.
Just don't tell me about that when I'm thinking coding and clutter up my thoughts.
Three weeks later I've hired a lawyer and bought a rolling pin and I don't need those ads anymore, they are perhaps the least profitable ads to show me.
There isn't a cheap way to do it without using some data. People don't often research stores in an area, once they find one in an area, so you're basically left to hope that people drive by and see the store name to Google it -- but those are people who were going to your site already.
Again, I don't want my thought processes hijacked, so the only acceptable context would be me searching for general stores or things that you carry, which I usually.. don't. If I'm looking at a map it is a good fit as well.
On the other hand, I'd really like a searchable inventory of all city stores, even in general terms. Sometimes it's not even clear which store might carry some obscure item and I'm left to guess and check all possibilities in person, often in vain.