Nice ideas Falconfly.
How about a comm's officer ? As soon as you're in a system, can make contact for you with all landings and check prices, stock, etc... for a commodity.
As somebody mentioned psi-5 trading company :
You could give them traits like :
- Has contacts within one of the superpowers and gives a small advantage dealing with said superpower.
- performs well under stress but slow overall, or the reverse...
- Very good abilities, but goes haywire when transporting slaves/narcotics
...