in universe chonological timeline
http://starwars.wikia.com/wiki/Timeline_of_books
if you wanted to you could read them in publishing order which would take a little more time to find the correct order. but Splinter of the Minds Eye was first followed by the Han Solo Adventures (the original Han Solo At Star’s End | Han Solo’s Revenge | Han Solo and the Lost Legacy)..
I would recommend the X wing Series, Thrawn Series and also the short story books
Tales from Mos Eisley Cantina, Tales of the Bounty Hunters, Tales from Jabba’s Palace,
Tales from the Empire, Tales from the New Republic
are good places to start. The first 3 Short Story collections are all by Kevin J Anderson. Along with Michael Stackpole they seem to be my favorites for writing Star Wars, leaving out Timothy Zahn only because he gets mentioned more often.
The Splinter of the Mind's Eye by Alan Dean Foster is fantastic. It supposedly was going to be the story for a sequel to Star Wars if it didnt do well and they had a low budget to work with. But when they got the big budget they made Empire and had Alan write the novel for Splinter