The best would be organic alternatives to milk ..like organic oat milk 

Next would come from Hare Krishna farm cows ...Ahimsa Milk @ https://www.ahimsamilk.org

Next Organic Milk

There is no more choice for cows are not treated rightly so the milk they give has low vibes, low energy and low taste.

Simple conclusion is only drink organic milk where the cows are treated with great respect ..slaughter free