You can still use real coconut milk if you want to make your own coffee. You need to look at the ingredients list on products that you expect to be healthy. In supermarkets where I live, there are about four brands of almond milk available. I think two of them have just almonds and water, the others have added sugar. They are all brands that are supposedly health food manufacturers.
Also, if you are lactose intolerant, it doesn't mean you have to stop drinking milk or having dairy products. You can take lactase enzymes so you can digest the lactose. You can also still use good quality whey protein isolate, it has virtually no lactose in it.