Bottles for feeding

What are people doing regarding bottles? When i had my son 11years ago he was on tommee tippee. Now iv got a box of 4 9oz tommee tippe anti colic ones.. a box of phillip avent and 2 little mam ones i got free from my store with my reward card. Its just now a lot of people are saying tommee tippee ones tend to cause colic and babies arnt taking to them. Do i just use what i have when shes born and see what works best and buy more? Its just i want to get the tommee steriliser but can i use over bottle brands in this? So much has changed lol 🤔