Obviously depends on your call-out time, anf how often you get called. If you rarely get called, you could probably get any job you're qualified for as long as the boss has a clear understanding that you may cut and run.
You might be able to find a CFI job doing ground school or sim training so you don't bust any flight time limits.
Also, you could get a job on the opposite side of the clock from your reserve shift. That way if you get called to fly, you could just call in sick to the other job in advance and not have to walk off the job.
I'd recommend real-estate if the market wasn't in a shallow descent.
If you have significant technical/computer skills and can learn about network management, you can do that online from anywhere. Same with some programming work (ie web page design).