Comuter/Regionals are hiring at or around those hours.
I belive most 135 cargo outfits hire SIC time builders these days.
AirNet
Central air
are a couple that I can think of right now.
Other than that I imagine that your other options would be 135 VFR tour operators(grand canyon), banner towers, and Parachute jumpers. As you can imagine these gigs are seasonal and regional, I guess it all depends on where you live or how flexible you are to go where you can get a job.
GL,