I can second what others have said about the ag industry, seems to be quite a demand there.
Also in heavy transport. I was fortunate to have worked in this field prior to getting a pilot license so that helped to get back in to it.
There is a real shortage of decent people to operate this equipment. It is more than just driving down the road however. Loading and securing freight. Fatigue rules and which roads one can drive a certain combination on are all daily challenges. I would say pilots are very suited to this work but one does need an M/C or at least H/C license.
Most towns have several freight companies so it should be relatively straight forward to go down to one and have a chat.
I am operating a road train or b-double and grossing between 2 and 3 k a week.