Formula Milk for 1 yr old +

Hi mga mommies, ask ko lang if anong milk ang masarap? I've tried and bought expensive milks kasi I want what is best for my son pero ayaw niya eh. Pero yung Birch Tree naubos niya kaagad. My sister said na baka daw gusto niya yung masarap. By the way he is fully breastfed until now. I want him to drink formula milk na e kasi ang sakit na when he bites. Hope you can recommend good formula milks na masarap. I cant do taste test kasi lactose intolerant ako. Thank you mommies! 😊