Patreon or subscriber models if it's specialised enough. Upload-and-pray on algorithmically driven platforms. Spammy websites that are somehow seo optimized and full of ads with no content.

Also why do you think engagement leads to monetization?

Thanks! Maybe the idea is how to make the content more interesting at first sight, like wikihow's images. How to make the most of something that can be explained in a few steps, and make the user revisit it, that sort of engagement.

Maybe do a short (or long) ebook/PDF and sell it on Gumroad or Leanpub.

Great idea, thanks!