Fira Code - A font derived from Fira Mono with added ligatures.
Operator - Looking for something? Make a request and we'll find it.
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.
Inconsolata - OSX, Productivity, Design, Typography, powerline, and Fonts
Input Mono - Multiform monospace font.
Bitstream Vera Sans Mono - Bitstream Vera Sans Mono Font | dafont.com