Best sippy cup for milk

RAS • Mommy to Mila Rose 9-2-18 & Isla Lily 03-21-20 🎀💗🙏🏻

Just gave my daughter cow milk now for the first time since I go the go ahead. I used an old bottle we had for newborn I think it’s to slow flowing for her and we used a sippy cup but she doesn’t realize she has to hold it up so I’m thinking i need something with a straw. We use munchkin for water and I don’t like it I feel it always spills even if it’s locked. Need something reliable and spill proof. Thanks !