I want to use the site's space for good and profit, and I consider advertising as one of the solutions. I would like to know more about the various strategies for effective advertising sales.
Have you thought about contacting some advertising agency? To be honest, I'm not sure if I'm calling it right, but I think you get what I mean.
Every site has free space to place ads there. But if you don't want to take the risk and immediately find advertising products that suit your target audience, as well as use the best strategies to sell ads effectively, I advise you to learn about ad networks like Adsterra, which provides access to a quality database of advertisers and supports various types of ad formats.
There's already plenty of information freely available on this topic...