Cavalry are the third troops available to the governor of a newly-founded city. They are trained and upgraded in the Stable. Several commanders have the ability to specialize their talents to boost the effectiveness of cavalry, including Cao Cao, Minamoto no Yoshitsune, Pelagius, Belisarius, Baibars, Lancelot, and Dragon Lancer.
There is the list of actual commanders that are cavalry based
Cavalry Troops Stats and Comparison;
Top 3 Best Civilizations for Cavalry Commanders
Arabia
One of the best civilizations to start with for cavalry commanders is Arabia. This civilization is just amazing with cavalry troops because they get 5% attack bonus. All troops also do 10% increased damage towards barbarians and neutral units.
Plus, when you assemble a rallying army, then the troops does another 5% extra damage. If you do a cavalry commander pair and only do cavalry as special unit then the overall damage done will further increase because of these traits.
One of the best civilizations to start with for cavalry commanders is Arabia. This civilization is just amazing with cavalry troops because they get 5% attack bonus. All troops also do 10% increased damage towards barbarians and neutral units.
Plus, when you assemble a rallying army, then the troops does another 5% extra damage. If you do a cavalry commander pair and only do cavalry as special unit then the overall damage done will further increase because of these traits.
Spain is another popular civilization to play with if you are doing cavalry commanders. This civilization gives 5% cavalry defense and all commanders gets 10% increased experience gain. Furthermore, your resource buildings produce 20% more.
So, this civilization is pretty good if you are into PvE battles and want to be able to minimize your causalities through improved defense. But other than PvE, Germany and Arabia is great at PvP battles due to better attack stats.
Another good civilization to start that works with cavalry commanders is Germany. This civilization gives 5% attack bonus to cavalry and the training time for troops is reduced. Which means you can pump out more troops to prepare for battle.
If you are farming barbarians, you will also be able to take advantage of the 10% Action Points Recovery (AP), allowing you to hunt down more barbarians.
There it is the best speed runners pairings on the game 
