i'm on the last book of the terra ignota trilogy, by ada palmer, who has a very interesting, confusing, philosophical take on a sort of bolo'bolo style society (barring the extremely significant size limitation, among other things) that includes two different groups i would call anarchic (the blacklaws and the utopians), within a larger context that could also be called meta-anarchy or some fucking thing. don't quote me on that.
kinda reads like a philosophy doctoral thesis in fiction form, which isn't to say it's dry, although it is at times. anyway, if you have some time and brainspace, i think it's worthwhile.
edit: to include some other science fiction pieces, because i feel this list so far is seriously lacking--
iain banks' culture novels
"the last of the masters" by PK dick
always coming home by UK le guin (if i recall correctly) (i mean, it's definitely by ursula, and i think it has an anarchist society. it's been decades since reading)
walkaway by cory doctorow
woman on the edge of time by marge piercy
the city, not long after by pat murphy