YDC
Pardon the dust, this site is still in an early beta stage.
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.
Reddblush
aka Reddverse, Reddspice, Spicetail
Patreon Gumroad Patreon (straight)
Taryuji
aka Tarkun, Tar-kun, Tar-shadow, Tadow, タユジ
SubscribeStar (SFW/Comic) Fantia Patreon HicceArs BuyMeACoffee (SFW/Comic)
Wool
aka うーる, associated with the Keito no Mori (毛糸の森) circle
Fantia Digiket Toranoana Booth
ペス
aka Pesu, Besuyama (ベス山), Pesuyama (ペス山), xymt
Fantia (yaoi shota) Fanbox (boys in general) Fantia-2 (boys in general)