I added two NPC nations to the map, and I'll post some lore entries about them. The first is "The Free Cities of Harra" which is to the northwest of Othea and west of Ulior, the second is "the Adrany Protectorate" which is north of the Kingdom of Idris. I also added cities to each, and feel free to argue with my city placements though I warn you it would be difficult to remove them.

For the free cities, imagine what would happen if Rohan and the Harad mixed.