My daughter is allergic to milk protein and soya meaning we needed to find an alternative.
Oat milk (the type fortified with Calcium) is the best option we’ve found.
It’s got decent fat and carb content. Better than alternatives environmentally as most oat production is used for animal feed so it’s displacing something already produced rather than promoting deforestation and new agricultural efforts.
I still drink some cows milk but have switched up for my coffees at least.