Let's face it, just short of a REALLY strong, stinky blue cheese that will be difficult to mask for the rest of the day, all cheeses lend themselves well for a variety of breakfasts. Heck, the Marin French Cheese company even makes a Breakfast Cheese that comes in a variety of flavors!
In a word, any of the cheeses that we call "Swiss." They are good to eat with pastries, etc. I have a little blood sugar problem, and in Europe they filled the protein requirement that the lack of bacon, ham, etc. left.