Any GPS will do really. The one you buy is probably the one you will prefer. All you need is information on track over the ground, Bearing to the waypoint, and distance to waypoint.
If you NEED a GPS for good spots, maybe you should think about the weather before jumping in the aeroplane. They are good TOOLS, but when a visual spot is not possible, it is hightly likely that you are in marginal VFR, IFR (illegal) or dropping through cloud.
Turn it off and see normally happy faces go pale!!