Chip and Hi-Tech is usually good margin opportunity.I believe they patched adv sat exploit. I remember reading something about it. I was making a ton of credits filling up my ships with them at my own shipyard.
The resources/part cost to final product is insane. Like $5 worth of parts for a product worth $100k.
Mission can earn decent cash too but it's quite random.
The faction XY vs Xenon / other faction are usually worth it.
I expect some more tweaks, the "MP" isnt yet live?