Mark Madsen is the 1st guy most people thought of, and I still believe he is a potential top candidate despite his Tweet. That being said, another top candidate should be Alex Jensen. He was awesome with the Jazz, under Snyder, is a member, and would probably love coming back to Utah. He took the Mavericks assistant job after the Jazz hired Hardy and Dennis Lindsey was hired as the Dallas GM. From all accounts, he is a great coach, and is especially great with helping bigs with their post game. He would be a solid hire.
Tim Lacomb is another guy that should consider bringing on as a top assistant. He and Quincy Lewis have so many recruiting connections in Utah and nationwide, both within the high school and AAU circuits.