There are lots of people selling resources on Xianyu, and the source of the inventory actually gets scraped from this site.

FMHY, one of the largest free resource aggregation sites on the entire internet.
Streaming media, music, games, e-books, and AI tools are all sorted into categories.
Close to 30k links—community members filter them manually, and the safety has also been verified by people.
Updated every day, no ads, dark mode, and search works well too.
In plain terms, a lot of the money you spend on Xianyu goes to paying the middlemen, charging you an intelligence tax.
Address:
The crazy part about this is that it actually doesn’t sell courses.