The US currently has a strong energy frontier collider physics effort at the LHC. The detector design for the HL-LHC is to leading order completed, and the Snowmass process of documenting possible future options and their physics potential has begun. One exciting possibility is the construction of a new electron-positron collider. I will present the four current options, discuss their exciting physics potential, and the demanding requirements of the needed detectors. I will discuss why you should consider exploring these exciting machines in a Snowmass contribution, and how to get involved with others in the electron-positron community.