I have lost several horses by fast travelling with them. They sometimes wander off or they sometimes don't come with me. Are there any good mods that make sure the horses travel with me and stay with me? Thanks.

Dude Where's My Horse puts a quest marker targeting your last ridden horse. I don't know any mods that support owning lots of horses though.

http://www.tesnexus.com/downloads/file.php?id=8766 lets you have a train of horses following you. They also fast travel with you. Works like a charm.

Does not like mods that disable horses - like DLC horse armour or Sell horses.

Cheers!

In my sig is link for tread dedicated to horses. Look into Controls section - there are several mods for summoning and commanding your steed.

Thanks very much for the comments. I will give those mods a whirl!