Horses Wear Armor
If you've never used the mod on a PC, the premise is simple. It adds some wonderful armored horses to the game. So, if you're sick of trotting around with the same old vanilla horses, this is a mod you might want to download.
The Xbox One version of the mod features Nordic Steel Horse Armor in Whiterun, Dwarven Horse Armor in Markarth, Ebony Horse Armor in Windhelm, Leather Horse Armor in Riften, and Dragonbone Horse Armor in Solitude.
A nice variety and they look great.