Sippy cup recommendations?

My son will be 6 months tomorrow, and I’m looking to start giving him a sippy cup. He uses Comotomo bottles and that’s the only bottle/nipple he likes. I’ve tried giving him the Chicco brand sippy cup (just because that’s what he have on hand) and he absolutely hates it but loves to hold it because it has handles. Any sippy cup recommendations would be super appreciated! Thanks in advance