Although it seems counter-intuitive, the lighter the roast the higher the caffeine content. Starbucks Blonde roasts are pretty good. Double up the amount and brew it stronger too. I use the my k-cup (fill your own) and fill it twice, brewing on 6oz each time. My husband likes to make a regular cup and then stir in instant coffee but to me that tastes like garbage.
Get the Kherug. Buy a strong coffee....the new machines have an automatic frother
and put in a double shot into your coffee cup. For me , sugar wakes me up and adds to the "boost".