Yaad Mohammad recently released what’s probably the best tutorial on freestanding handstand pushups published on YouTube. Yaad divided the tutorial to seven stages and most of them contain drills to improve both skill and strength.
Be warned: the tutorial is long, extremely detailed and funny, too!
Not quite ready to learn the freestanding handstand pushup? Check out my Ultimate Guide to Handstand Pushups to learn how to perform wall-assisted handstand pushups first.