It’s been said but heavy cream is a great alternaive, I use about one tablespoon per mug. Sometimes I add a tiny bit of vanilla extract and a small amount of powdered sugar to the cream and whip it with an electric frother.

A dairy free alternative is oat milk, the thicker store bought ones are great, but I usually make my own. Just blend a 1/4 to 1/2 cup of oats to 2 cups of water in a blender for 30 seconds and strain through coffee filters or some salvaged fabric from an old shirt. It can be heated and frothed, then poured over the top of your coffee for a nice foam.

To be honest though, usually if I’m not feeling like straight black coffee I just add 1/2 tbs of brown sugar and that’s more than enough for me.