Mother 3, Tazmilly Village's whole shtick in the beginning.
Tales of Vesperia, where society outside of the Empire is literally anarcho-syndicalism. The Guilds organize society but they aren't strictly "authoritative" in any real sense and don't have formal leaders, nor are you required to be in one. The game has some interesting critiques about the specifics but in a fairly sympathetic manner.
Xenoblade Chronicles X where an alien species that's characterized as being Extremely Normal is also explicitly anarchist like it's a common sense thing to them.
