Camel

While multiple people have suggested the camel I would still like to post my take on the mob. So it would obviously spawn in the desert and be tamed using wheat or hay bales and healed or bred with cacti. It could be equipped with saddles, chests, and carpets (similarly to llamas). Two saddles could be equipped allowing  two players to ride and their chest space would be more than a donkey. They would run as fast a player and would only be able to jump one block. Camels would have 50 hearts and be unable to fit in boats.