YDC
Yaoi Drives Catalogue
This is a catalogue of yaoi artists utilizing paywalled content.
Here you can find links to the relevant shops (or platforms effectively used as shops, such as Patreon), official media galleries (Pixiv and alike), and places where you can preview the exclusive content before deciding if the stuff's worth your money, such as scrapers and community-maintained drives.
Recently added links list can now be found on-site: check it out