I'm not sure that Wraith Squadron was that forgotten. One of the last old EU novels before the Disney sale/canon overhaul was a Wraith Squadron novel. (The author of the series also died a few years later).
I also have a bit of a soft spot for "River of Chaos" a Louise Simonson comic series from the mid 90's dealing with a defecting Imperial pilot (By now a well-worn Star Wars trope it seems) and also featuring Leia as a side character.