The milk of human kindness. Another GP paeds blog. Yes this one is a bit more GP but you can bet you are going to be asked this question at an inconvenient moment so there is a lot to learn.
Key points
The choice of milks is an illusion.
In Colic- nothing works but time.
In GORD- it’s not about the milk, its usually over feeding!
Maybe consider a thickener.
Lactose intolerance is temporary after gastro and massively over diagnoses.
Cow’s milk protein allergy- is complicated you will have to read it all.
https://gppaedstips.blogspot.com/2019/02/too-much-choice-what-milk-do-you-need.html

Too much choice – What milk do you need to give a baby with a feeding problem?

A combination of commentary and clinical content for primary care clinicians, giving useful medical morsels about child health care.