Legacy and Knights of the Old Republic both have trades of their first arcs out. I'd recommend those.
Knights of the Old Republic takes place a few years before the first video game and follows a Padawan named Zayne Carrick, who's prophesied to bring ruin to the Republic. Part of the fun of KotOR is speculating on which of the known video game characters he might wind up becoming.
Legacy takes place about a century after Return of the Jedi and follows Cade Skywalker, Luke's descendant. He's traumatized at an early age by the death of his father and the ungodly power his connection to the Force grants him, so he grows up hiding his Jedi heritage and becomes a bounty hunter. Luke's Force ghost visits him periodically to try and get him back on the right path, but he won't listen until a new batch of Sith lords appear, oust the ruling Emperor Roan Fel from power, and attempt to kill Cade. He finally picks up a lightsaber again and begins trying to find his way back to the path of a Jedi. The book basically chronicles that.
I haven't read Rebellion or Dark Times, both of which deal with the time period of the movies, mostly because I'm not really interested in reading comics about stuff around the movies' time.
