First and foremost .... Shad (Gizzard, Threadfin, Hickory) & even Alewifes & Blueback Herring (depending on your location)
Baitshop "minnows" ... Fathead, Bluntnose, Creek Chub, Shiners, Rosy Red Fathead
But, I personally think the Silverside minnows are better than baitshop minnows, just much harder to catch