How to reach end users directly to sell premium domains?

Have you any strategy to reach end users to propose to them your premium domains?
I mean, we (investors) buy and resell premium domains not knowing when and who will buy them, probably other investors.
Is it useful to get in touch with someone who needs a website because he hasn't it yet and propose to him our premium domain? Or, we shouldn't care about who will buy it, and simply wait for search engineering to make the match happen.