Having quality content to pitch is always a plus, but the real kicker is having an *incentive*.
Imagine yourself as the WM of the site you’re pitching to. What would you need to hear in order to place a backlink? Keep in mind, they probably get 10-15 emails a day (for a smallish website with decent traffic) asking for the exact same thing.
Personally, the promise of my website reaching a broader audience, getting a backlink from somewhere in return, or cash are all good inventives.
We manage a small network of sites for the adults purpose off being able to say “I would be happy to offer you a link from one of these sites in exchange”
You have to find a way to break through the noise.