You can find lot of good/non ores trade rutes in Galia (as well as any other place in game) ,even some smugling goods ,you just have to expore a bit,thats what basic of this game isisnt, exporing and trading?
I for example have just take out transport ,started in Picardy, purchased SAMPLES of few goods from stations there (including unlawfouls) and just strol my way trough Galia systems casualy stoping on stations along the way,buying few more samples and keeping them all on board ,to compare prices and just enjoy the ride, Galia is beautifoul and pleasure to fly araund .
Why dont you try the same, i even give you few recomendations which goods samples you shuld check :
Black Market Light Arms/Munitions
Holo-Tainment Bands
Hypnotainment Bands
Molybdenum
Nickl
Nox
Oil
Petrochemicals
Wine
Have fun.