There were player tailors that actually made a bunch of designer clothes and even lines of clothing in the past that now have been made available to all.
Also reporters and news writers that actually report the news for the Globe/NLM
We've seen a handful of reality TV people that RPed out of their way to get some entertainment to the masses. Same can be done as a TV newsperson.
Couriers in the past have done well too, not only for Acme and Westhouse, but for players and corporations. Want to do a deal with someone but don't want to risk your neck in the delivery? Use a courier.
Medics, cyberdocs can do real good chy, same as chemists. But you need a bunch of UE before you start getting money back.
Mechanics can really get into things now that cars get damaged when you drive like shit
WCS always needs people to clean the streets of corpses and trudge the sewers...
Drivers, taxis, limos, ambulances... "Pay and I'll unlock the doors."
Buying and selling things is the most basic thing: buy low and sell high.
But the most important thing: RP your way around the game, it is rewarding.