Plenty of people love coffee. Yet it can be difficult to find just the right gift for someone who has a real compulsion—sorry, predilection—for a good brew. To discover gifts for the person who worships at the altar of espresso and can’t stop tapping their heel at 4 in the afternoon, we spoke with a handful of experts, including the owner of New York City’s Ninth Street Espresso and Wirecutter’s coffee-obsessed staffers.