Here they are in reading order:
Apple Jacks SPecial (shortly before ANH)
Rogue Suadron #1/2 (don't rememebr when exactly it occurs)
Star Wars: Rogue Squadron #1-3 - Rogue Leader (still available in comic stands)
Star Wars: X-Wing Rogue Squadron #1-4 - The Rebel Opposition
Star Wars: X-Wing Rogue Squadron #5-8 - The Phantom Affair
Star Wars: X-Wing Rogue Squadron #9-12 - Battleground: Tatooine
Star Wars: X-Wing Rogue Squadron #13-16 - The Warrior Princess
Star Wars: X-Wing Rogue Squadron #17-20 - Requiem for a Rogue
Star Wars: X-Wing Rogue Squadron #21-24 - In the Empire's Service
Star Wars: X-Wing Rogue Squadron #25 - The Making of Baron Fel
Star Wars: X-Wing Rogue Squadron #26-27 - Family Ties
Star Wars: X-Wing Rogue Squadron #28-30 - Masquerade
Star Wars: X-Wing Rogue Squadron #32-35 - Mandatory Retirement
Also
Star Wars Handbook #1: X-Wing Rogue Squadron (a guide)
Most of teh above are available as TPB. The stories pretty good. SOme better than others, but a good grounding, especially for teh core characters like Wedge, Wes, and Tycho, among others.