HERE. Among its contributors is Ray Brassier, whose outstanding essay "Nominalism, Naturalism, Materialism" establishes "a role for a priori philosophical theorizing" constrained by empirical inquiry. In short, a "metaphysics naturalized."
Those interested in Brassier's rejection of nominalism may want to see my review of his article "That Which is Not: Philosophy as Entwinement of Truth and Negativity." A link to that review is HERE.