They are called "content lockers". A banner automatically pops up on the page or when you click something. You will have to complete an offer or two to unlock content/download, even if there isn't actually a download there. The most popular content locker site on BHW is OGADS. They can pay pretty well
As I understand it, he wants to create a page complete with banners. So without content, only banners. The compensation should take place per impression (not click or lead). Although the remuneration is low, he hopes to take enough banners enough anyway. I do not think you will be paid because your traffic will not convert.
That is a content locker
There's a guy in another thread that links to a screenshot he has uploaded on a site exactly as the one I was describing:
I see no other advertising on that screenshot!!I'm not talking about the screenshot. I'm talking about the webpage it's uploaded on.
It's not as easy as it sounds. Those places all have shitty fill rates so you would need a daisy chain of networks to fill most of the impressions. they'll pay you $1 for 1k impressions, but they will only fill 10% of your traffic, and that would be the top of your chain, so you would need 9 other networks that pay $1 per 1k impressions that all allow placing house ads which is a default ad if they don't have one to serve, which would be the next one down the line. This sort of setup is a pain in the ass to find enough fill, and what i describe is a single banner, not 5.