Sippy Cup

Best sippy cup for an EBF baby? My daughter has never drank out of a bottle before but since she is starting to eat solids on a daily basis, I'm wanting to give her a little water after feeds to help so she doesn't get constipated, though she does breastfeed after a feed. Something easy to hold for her and easy to clean for me and won't leak! Pics would be helpful so I know exactly what to look for, thank you!