A recent article on parecon is "Wages, Prices, and Money in a Post-Capitalist Economy" by Eric Patton, published on the Dissident Voice website.

A book like No Gods, No Masters by Daniel Guerin would at least contain chapters on historical examples of anarchist alternatives to capitalist economies. For a specific historical example, you could try to find Anarchist Economics: The Economics of the Spanish Libertarian Collectives, 1936-39 by Abraham Guillen, for which there is a critical review on the NEFAC (Northeastern Federation of Anarcho-Communists) website.