Fira Code - A font derived from Fira Mono with added ligatures.
Operator - Looking for something? Make a request and we'll find it.
SF Mono - Use the SF Mono font in Atom by importing it from Terminal.app
M+ 1m - Download and install the M+ 1m free font family by M+ Fonts as well as test-drive and see a complete character set.
Roboto Mono - Making the web more beautiful, fast, and open through great typography
Inconsolata - OSX, Productivity, Design, Typography, powerline, and Fonts