To add to that list, those I found useful to increase difficulty/load once regular pushups become to easy: - Zombie pushups: Offset hands instead of aligning i

To add to that list, those I found useful to increase difficulty/load once regular pushups become to easy: - Zombie pushups: Offset hands instead of aligning in a straight line (one upper, one lower) - alternate after a set - Asymetric pushups: Move one arm/hand farther out than the other, try to go down to the center. Alternate sets. Use as progression to go towards one-arm pushups. Another variant is to go with symetric hand position, but lower your body towards one hand at a time (think "nipple to the thumb"). That being said, I strongly believe they are not healthy for your joints, the one-arm pushup in general feels just bad for the joints given the performed motion.