MAM bottles have worked for us with formula. My baby is breast fed and formula fed. I’ve heard for water cups, it’s best for either an open top cup or a straw cup with no valve. This helps them work on the tipping and sipping motion and is better for their teeth
We just use a tum tum cup 90% of time as my daughter’s fussy n cant make up her mind if she likes it or not whenever ive had to give a bottle
I have used a doidy cup for water with meals and my LO has taken to it well. I used the same cup with my first and then used it to give milk. Both my children refused the bottle. I personally would just go with whichever cup your LO is doing well with and give milk in that.