Romar is next on the flight plan. According to the Wiki (and Behind the Claw, and Mongoose Spinward Marches), Dustspice is harvested there. And there is a large population of Aslan.
So I am starting on the guide next. A desert world, yet there is a 5% covering of very briny lakes where the geki plant thrives, which is where the dustspice comes from.
I believe I have far too much fun detailing the worlds, and most of the details never actually come into play.