We were using Tommy Tippee anti Colic but they leak and she wasn't drinking much during the day. Switched to MAM anti Colic and noticed a big difference. Plus easier to steralise. Hope you find some that suit your little one x
My baby is doing great with Tommee Tippee Closer to Nature
I use the MAM bottles, they are amazing and would highly recommend, we also used Infacol for a while to help with her gas. X
The dr brown anti colic bottles are amazing, the Phillips avent anti colic bottles are great too. My baby doesn’t do great with fast flow and those work great on her. Just make sure the nipple isn’t greater than flow 1. In all honesty it all depends on your baby which bottle they will accept. My daughter hated tommee tippee bottles and would just play with the nipple on it. It’s all trial and error when it comes to bottles.
Have you been checked for a tongue tie?
Are you the right teat size? I'm using Dr browns anti colic bottles, recommended by my friend who is a NICU nurse. Baby seems to get on really well with them!