Sippy cup

Sippy cup recommendations? Or transitional sippy cups? My son has begun in the last month not wanting his bottles when he's at daycare or his grandma's when I work. I feel pretty certain it's the bottle itself (doesnt like it, teething, etc, idk) because he's nursing the same as always. They say he kind of chews on it, spits it out, and then won't open his mouth back up. I was looking at this one. I know it may take some trial and error, but looking for a starting point. He has a Munchkin 360, but hasn't quite figured it out. He drinks water decently from just a regular cup. Thanks!