ITD: Religion

Buddhist

Sutta Central

Website dedicated to the preservation and translation of Buddhist scriptures, specifically the Tipitaka. I read The People of Sala on reccomendation.

84000 Reading Room

Massive translation project of Tibetan Buddhist texts. Plenty of scripture to read; this Buddha fella really said a whole lot.

Christian/Christian-Adjacent

Gnosis.org

Site that contains a text treasure trove of Gnostic knickknacks.

Tradition in Action

Haven't read much of it but lots of crazy stuff in What People Are Saying pages.

Else

blavatsky.net

A site dedicated to Theosophy. The page linked is the link to the additional articles. You can poke around a bit (especially by going back directories with the url), but the site is very confusing to use. The things on there is lightly unhinged, but that's what makes it interesting.