In Ursula Le Guin’s The Dispossessed, there are two planets in the same solar system. The one with bountiful natural resources is hyper capitalist, where as the other planet, which is mostly arid and can sometimes experience famine, is an Anarchist society out of necessity.

I think it makes a compelling case that we could become socialist without the post scarcity luxury part.

It’s a good book. I’d recommend it as one of the most realistic take on an anarchist society I’ve seen depicted.