Bottle Recommendations

In search of a different bottle for my 6 month old. She is currently using Tommee Tippee Advanced Anti Colic Bottles and seemed to do ok on Boon Nursh bottles as well but her acid reflux is getting worse. She’s on Pepcid but it doesn’t seem to be helping and she’s on Enfamil AR because of the reflux and it causing her to spit up. We’ve tried nutramigen per her pediatrician but it made it worse and her doctor eventually ruled out cmpa. Any suggestions or recommendations are appreciated. Specifically ant colic bottles cause she constantly bloated and gassy and tends to get constipated very easily and is going through a phase where it’s near impossible to get a burp out of her