Anyone have any experience with the Education Niche?

I have a solid domain that is 15 years old with high DA and a ton of backlinks; all in the "training space" and "tech"

Sure, there are a ton of affiliate educational programs out there but is there a method or platform, or product that you think could be interesting to take a look at?

I tried Udemy but it was a miserable failure - I'd sent them thousands of clicks and generated a few sales that amounted to, well, a couple of bucks.

I placed AdSense all over the site and it was typically bringing in about USD 20 (ish) a day which wasn't too shoddy considering the zero-effort that was making - but I am thinking about larger ticket items - any thoughts or inspiration? Thanks!

Growth & scale.

Found something that worked for you? Something that generated income? Scale it the way you grew it.