Welcome to GalaxyS7Root.com, this site is run by Max Lee who is a long-time Android tutorial writer/videographer. Our goal is to help Galaxy S7 & S7 Edge users root their phones and install custom ROMs.
As of right now (March 18th 2016), there is NO ROOT method for most of the U.S. variants of Galaxy S7 and S7 Edge due to bootloader being locked. If you want root, you will need to grab the international GM-G930F or SM-G935F model.
If the bootloader becomes unlockable for the Galaxy S7 & S7 Edge in the near future, I will have an update but for right now your best bet for root and custom ROMs is to pick up an international unit.