Autobot
Autobots are one of the two major factions (but not two only factions) of Transformers, a race of sentient robots from the planet of Cybertron. For all intents and purposes, they are the quintessential "good guys", believing that freedom is the right of all sentient beings and fight with that right with all their force.
Curiously, Decepticons appear to be more prevalent in Equestrian affairs...