What kind of push-ups help you build upper body strength? * Regular push-ups.
Diamond push-ups.

Diamond Push-Ups

Explanation:

The diamond push up puts more emphasis and is better for building the triceps and the pec minor compared to the regular push up. For some people it is hard to do a regular pushup and diamond push-ups are not fully push-ups, it is a type of dog position.

Hope this helps!