i just use an open cup as she’s starting to get teeth now x
Doidy open cup and tum tum weighted straw cup.
We use Tumtum straw cup, it doesn’t have a valve which has helps her learn how to control the water flow herself x
I second Emily's recommendation
For a cheap alternative to Tum tum (£2.45), a free flow straw in Tesco that works really well for my little boy, he has been using it from 7 months. Fred & Flo Straw Beaker 380Ml https://www.tesco.com/groceries/en-GB/products/301254129
We use the straw when out for meals and practice with doidy cup at home
I always understood that free flow beakers are the best and babies shouldn't use beakers with valves.