Better bottle nipples
No bottle is like breastfeeding, but these are -better- than most on the market. You want to look for a nipple that tapers gently from tip to base. Currently, there are only a few on the market: Lansinoh, Pigeon, Lactation Hub, Evenflo Balance +. MOST will fit on bottles you probably already own so you may be able to just buy the nipples, not the whole bottle.