There are places that list businesses, like the yellow pages of old, or place ads in publications that are relevant to the services or products you offer.
If you sell tires, and I don’t need tires, I don’t want to hear or see anything about tires.
Same thing with door-to-door salespeople. Seems like in the past the percentage of people selling useful stuff like cleaning products, Avon, or yard service was higher. Now it seems to be out of town companies selling solar scams, roof inspection, or some other multi-thousand dollar thing sold via high-pressure sales.
You don't.