Stuff that doesn't fit anywhere else, or isn't even Tolkien, but may still be relevant to your fandom interests.
Silmarillion Secret Diaries - Just what it says, and absolute ludicrousness.
All My Sweethearts - Fanfiction for Philip Pullman's His Dark Materials. What happened to Lee Scoresby after the last battle in The Amber Spyglass, and who are all the sweethearts he alludes to? Genfic, on the edge of romantic het.
The Servant of Inari - A love triangle between a guard, a prince, and a trickster fox-spirit in 14th-century Japan. This is a slash version of an old Japanese folktale, laden with soft-core eroticism.