From Push Up to Handstand Push Up - Udemy

This course will teach how to use your body as your own personal gym when training the push up, and it's appropriate for all levels! Whether you can barely do one push up or you've been able to achieve multiple push ups but you're ready to start stepping up the difficulty, then this is the course for you.

You'll learn how to:
modulate the intensity of a push by using mechanical leverage; train the push up sustainably and safely; progress from push up to, ultimately, the handstand pushup using the necessary and appropriate progressions.