Tolkien issues part 1: The Hobbit - All Media Types

These are relationships which I think are misclassified under this fandom (and my best guess where they should go). The ones I've labelled "LOTR-books" involve at least one book-only character, but the nominator could still have nominated them under All Media Types -- it's up to them, obviously!

1. Ar-Pharazôn/Sauron | Mairon (Silmarillion)
2. Aragorn & Elrond (LOTR, AMT or books)
3. Aragorn/Arwen/Éowyn/Faramir (LOTR, AMT or books)
4. Arwen & Éowyn (LOTR, AMT or books)
5. Arwen/Éowyn (LOTR, AMT or books)
6. Arwen/Gilraen (LOTR-books)
7. Arwen/Goldberry (LOTR-books)
8. Arwen/Tauriel (Crossover fandom: LOTR, AMT or books/The Hobbit)
9. Aulë | Mahal & Sauron | Mairon (Silmarillion)
10. Celebrían/Elrond (LOTR-books)
11. Elladan/Elrohir (LOTR-books)
12. Elrond/Gil-galad (Silmarillion)
14. Galadriel | Artanis & Lúthien Tinúviel (Silmarillion)
15. Galadriel/Lúthien (Silmarillion)
16. Gimli/Legolas Greenleaf (LOTR, AMT or books)

(I hope other Tolkien fans will jump in here if I've made a mistake or if one of these is your nomination.)