Tips for switching bottle brands/ nipple size.

Rebecca

My girl used to use Dr. Browns bottles, we have so much of those but then I switched to Tommy Tippy and the nipple is bigger (more like a breast) I feel like she sucks in a lot of air from it since it's bigger, so I'm wanting to switch back. But she doesn't seem to like her other bottles now. Any suggestions? I feel she would do better with a smaller nipple.