I believe all wreckers have front winches. I may be wrong, but I can't remember seeing one without a winch.
In order of size:
XM711, Truck, wrecker, light, 3/4-ton, 4x4 (M37 chassis), very rare
M60 Truck, wrecker, light, 2 1/2-ton, 6X6, (M35 chassis), very rare
M108 Truck, wrecker-crane, light, 2 1/2-ton, 6X6 (M35 chassis), very rare
M62 Truck, wrecker, medium, 5-ton, 6X6 (M39 chassis), common
M246 Truck, tractor-wrecker, medium, 5-ton, 6x6 (M39 chassis), uncommon
M543 Truck, wrecker, medium, 5-ton, 6X6 (M39 chassis), common
M816 Truck, wrecker, medium, 5-ton, 6x6 (M809 chassis), common
M819 Truck, tractor-wrecker, 5-ton, 6x6 (M809 chassis), uncommon
M933 Truck, tractor-wrecker, 5-ton, 6x6 (M939 chassis), never built/concept
M936 Truck, wrecker, medium, 5-ton, 6x6 (M939 chassis), common
M533 Truck, wrecker, 8-ton, 4x4 (M520 GOER chassis), rare
M553E1 Truck, wrecker, 10-ton, 6X6
M984 Truck, wrecker, heavy, 10-ton, 8x8 (HEMTT chassis), common