Nothronychus, both species, have a fairly similar body shape. Basically they look like ground sloths. With feathers, according to most interpretations. The one below is one of the typical configurations.
Skeletal models are also present for one of the species, N. mckinleyi.
I also found this somewhat charming poster for the Arizona Museum of Natural History. I'd love to go see this exhibit if I had the time and means to travel to Arizona and go to the AMNH.