Another Star Wars series that I enjoyed was the Black Fleet Crisis, written by Michael Kube-McDowell. I liked the character development of Leia, who comes to realize that she can’t do everything as President of the Republic. Luke’s out searching for this planet he got informed his mother was from, and still might be on (but those who’ve watched the movies know that it can’t be true, but when these books came out that story arc hadn’t happened yet.) But it was actually a trick by this woman who wanted his help and he found a group of force users that use the force totally differently then anyone in the Jedi Order had heard of; they called the Flow. Han ends up being in charge of a huge fleet of ships and has to fight off an attack by some left over Imperials.
Image found here.