Try any variety you like. But bear in mind that as PP's said, human children only NEED human milk. My DD gets goat's milk on her cereal, in pancakes I bake and things, etc. She drinks water and nurses. Sometimes she gets soy on her cereal when we run out of goat's, which is what I put on my cereal and in my coffee.
Bear in mind that almond and rice milks are basically just sugar water. Soy is too, but with protein as well. Goat's has both more fat and more protein (and less allergenic proteins) than cow's, with lower lactose. A whole fat diet is good for little ones, but there are other places to get those fats than cow's milk, most notably your own milk, which becomes more fat-concentrated to meet the needs of a toddler who isn't nursing as much as before, but also egg, avocado, nuts, plant oils (palm, olive, etc.)
breastfeeding, babywearing, homeschooling Heathen parent to my little Wanderer, 7 1/2 , and baby Elf-stone, 3/11!