Push-ups should build all-around 3 dimensional strength from every conceivable angle and hand position. If you’re bored with your current push-up regimen, give these a try and let me know what you think!
Wrist to Fist Push-ups
How to Train Wrist to Fist Push-ups
Whole Body Plyometric Frog Hop (not technically “push-ups” but close enough and fun!)
The Aiki Push-up
Want more awesome push-up variations?
Check out this article on 113 Killer Push-up Variations and Exercises