I recommend boon nursh bottles. They prevent colic very well and they’re non toxic. If you’re into that. Silicone bottles are safer than plastic bottles and boon nurse bottles are just that! https://amzn.to/3CoYbbR
We use Dr. browns. But it’s not necessarily the bottle, you can use whichever works. If she’s more gassy, I would try stopping throughout the feed for burping. My little guy was born with fgr so I was extremely worried that he would choke/spit up/struggle with gas, so I literally stopped every half ounce when he was a newborn and after a few weeks I stopped every 1-2oz to burp him. Seems to help a lot, even now at 10 weeks!
We’ve been using the Dr Browns narrow neck anti colic bottles and they’re a dream! She’s still a gulper but found if we burp her every 30ml and keep her upright after for about 5 mins then she’s less gassy!