Actually, goat milk is a great alternative if you have access to it. I was born with a cow milk allergy so the doctor suggested goat milk.
My family actually traded for a goat (I'm old and we were living outside the city limits at the time:)
I never drank milk growing up and still don't, however, when I was pregnant I lived on yoghurt and ice cream and my son drinks milk by the bucket:)
But, I use a little half-and-half or vanilla ice cream in my coffee. However, I've noticed that overall I feel better when I don't use either one, but I am having a hard time going back to black coffee - wish I'd never started with the ice cream, tastes good, but is giving me grief.
Soy milk does not agree with me either and I don't like the taste of Almond milk, but I do use buttermilk in baking or substitute the milk in baking recipes with applesauce (works great).
The only one I found with no real effects is coconut milk - I like the taste and I can tolerate it, just using with my coffee only. I only discovered that a few years ago, but I have to go out of my way to buy it.
Thanks for reminding me, I may look into goat milk and coconut milk again, obviously the ole milk allergy is still rearing its ugly head.