pluto, napoleon, or shiloh
I like Pluto because it's a cute name and you can go by all kinds of cute nicknames. Such as, pluie or plu bear, or plu plu, pluie boy, and there all really cute.
I like napoleon because it sounds good when your calling your horse and it also has good nicknames such as Leo, or Nolly or something! It's also just plain out cute and I like Shiloh because it sounds like a strong name and really sheik!