In terms of finding people who’d want to buy access to lists, listen to podcasts and notice who is sponsoring them. Those same people are looking to pay for additional exposure. Also Google keywords associated with your industry, or whatever the list is about that you’re brokering a deal with. Notice who is running ads for that thing, then reach out to them and say: Hey, I noticed you’re spending money on Google ads. You might get a better return if you spend some money with me and email this list, which is catered to the same keywords that you’re running on Google.
