All right, so the alliances are as follows:
Rhun (Jadli) & Dwarves (Captainnorway)
Mordor (Potatoto) & Harad (Redboosty)
OotMM (Dragon) & Isengard (paladinbob123)
Gondor (Ramble12) & Rohan (Hannibal2001)
Independent Factions:
Silvan Elves (Giagos)
I will update the OP. Let me know if I missed anything.