I think Echowind would be good because Hazelwind loves Echofrost and they think about each other during the book and how Echofrost thinks of him as a handsome buskin stallion with long Black mane and tail.

I want more Star and Morningleaf!!!! Starleaf forever!

I finished it about a week ago, and I'm seriously hoping that there's going to be a follow up series on both the Sandwens and Strom Herd. There are a lot on places the story can be built off