North East MD is only 18 miles from Bear, so there aren't many ramps closer than that. As others have said,the closest ramp is in Delaware City, on the C&D canal, actually not on the canal, it's on a channel that used to be the canal, near the east end. Seven miles from Bear.
Next closest is probably the ramp at Triton Marina, in Elkton,MD, on the upper Elk river, about 15 miles from Bear. But I think this ramp is closing because they filled their parking lot with a huge indoor rack storage facility, so there is no longer any parking. Next closest is probably Elk Neck state park, but now you are probably driving as far as if you were going to North East MD.
If you want to head down to the Bohemia or Sassafras, there are plenty more options, but now you're almost doubling your car ride, instead of decreasing it.
If you are just looking to get in the water close to home, another option is to launch at 'Up the Creek' restaraunt, on the Christina River, in downtown Wilmington. This is probably about ten miles from your house. I live in North Wilmington, and use this ramp quite often, but you're a decent haul from the Chesapeake Bay once you get in.