Carney Speech & Feeding - Narrow bottle nipples are typically easier to latch onto (Dr. Browns, Phillips Avent). Wide neck bottles (Dr. Browns wide neck, Como Tomo) are typically harder to latch
Dr. Brown Bottles Vs. Philips Avent: What's The Difference & Which Baby Bottle Brand Is Better? Nipple Sizes, Anti Colic, Safety, etc. - Motherhood Community
Amazon.com: Hamtery Portable Bottle Warmer Bag with Ice Pack, Compatible with Philips Avent/Dr Brown Bottle Warmer for Breastmilk, Small Cooler Bag Holds 4 Bottles Up to 9 Ounce : Baby
Dr Browns vs Avent Baby Bottles - yourcub.com
The Best Baby Bottles (and Bottle Brush) | Reviews by Wirecutter