Beanie bears? That isn't such a bad idea. Make childerns toys and entertainement software buy them from industry planets like Honshu and sell them at populated planets like New Tokyo and Manhatten
Designer Drugs is also a great idea you could have a faction that monopolizes in it kinda like the slavers union is for slaves
Oil is almost exclusivly produced by gallia and it doesn't look like they'll be warming up to us anytime soon. More human commodities would be great
