Put a bowl or tub on the scale before turning it on, or use the tare button if it has one. That will account for the weight of the bowl and it is easier to keep them in something with sides than balance on the platter. That would be a feat.

As for what kind, I sent my wife to target and she brought back this one and it works perfect. 5 lb capacity and weighs in grams. And the lcd part pulls forward so you can read it from under a bowl.