Never having read the EU personally I would pick up the story after the Return of Jedi, Luke dealing with the fallout of the collapse of the Empire and fighting his own demons about the scale of the carnage and being handed ultimate power with everyone looking up to him. Facing the temptation of becoming basically a second Emperor in order to solve all the problems would be a good moral test.
That or maybe a story about a Jedi trying to escape the order 66 purge and having to choose between doing something really noble or surviving. Again a good moral conflict because the Jedi would have to weight up his own survival as the last possible Jedi or letting the Empire do something pretty terrible.