Good units to go with Camus

Calvary. Xander, leo, or eldigan. ceillia or titania. Camus. Wrathful elise, reinhardt, olwen, or ursla. Look on this website for builds.

For horse emblem, the best characters would be Cecelia, Ryoma, Eldigan, Ursula, Elise, and Reinhardt/Olwen. Most other cavalier units aren't useful or worth it. Make sure to add the hone/fortify cavalry skills though

Xander, Celicia and Reinhardt.

I use xander and cecilia with camus and they work wonderfully together. My horse emblem team will be finished once I have an olwen or reinhardt