There are various ways to modify a pushup. The absolute easiest that I know of being a standing push up -- stand, plant your hands on a wall, and do the push up

There are various ways to modify a pushup. The absolute easiest that I know of being a standing push up -- stand, plant your hands on a wall, and do the push up motion. Horizontal pushups can also be made easier. Feels dissatisfying to not even do a "real" pushup, but on the other hand, shoulder injuries are hell.