I gotta Mammut with a nice metal blade thats pretty damn sharp. Handle slides in side of pack, base of shovel in pocket in front of my Mammut pack. Super handy and quick access.
Worthy of note though, check your probes people! A lot people are going out with wimpy probes and you ain't finding your buddy in a heavy decomposition zone with a weak probe. My advice, 2 meters+ in height, cable rip cord, with meter markings on the pole. My buddy pulled his out Monday in a drill and it was a little over 6 feet and about as thick as a writing pin. We forced him to pick up a new probe on the way home.
80% of any rescue time is spent in the dig. You wanna probe your bro ASAP, know how deep to dig, and then alternate diggers. Everyone should try mock drills every couple times out to keep yourselves fresh, cause in the panic, you wanna be on autopilot.