In terminals (URxvt client) and Xlib/Motif apps, I mainly use limey (artwiz-lime mod) and antidote(artwiz-cure mod), you can find both here. I'm confident several users here are already familiar with that github repo. On GTK/Qt programs, I use Helvetica or Lucida Sans. In the past I've been also an avid Fixed (xterm's default) and DEC Terminal user.