Best Formula Milk for Newborn?

Hello mommies and soon to be mommies, I will be undergoing CS but I plan to exclusively breastfeed my baby. However, I might not be able to feed her immediately due to post op status. What formula milk would you recommend para hindi po nya ayawan ang breastmilk? Sabi po kasi dahil sweetened ang commercial formula milk mahirap na sila iswitch sa breastmilk?salamat po#advicepls #pleasehelp