It’s post-PT, but I always have to give Matthew Stover’s Luke Skywalker and the Shadows of Mindor a strong recommendation. Fantastic book set shortly after ROTJ (and Truce at Bakura). There are some prequelisms (clones mainly), but damn if Stover doesn’t just get the OT characters, and for such a fun book it gets surprisingly dark at times.
Really hope Stover eventually writes a canon book.