My vote is a reeflo.
Probably one of the quietest on the market.
If you want to even further cut down on vibrations, add silicone to the bottom and let it dry. The silicone will dampen and almost completely silence any vibrations.
Sicce, red dragon,... They make decent pumps too. Little giant and iwaki also are pretty good.
If you want to make sure you get a good pump, spend the $$. Otherwise, reeflo is a good brand.