There are several types of cherries you can use for making mead, including sweet, tart, and black cherries. The choice ultimately depends on the flavor profile you're aiming for. Tart cherries add a touch of sourness to the mead, while sweet cherries contribute more sugar content and a milder flavor. Black cherries provide a deep, rich color and slight bitterness. Be sure to use fresh or frozen cherries to get the best results.