You may enjoy several authors whose work became famous in the period known as "The Boom", which refers to the proliferation of Latin American fiction in the 960's and 70's. In addition to the magical realism of Marquez's work, consider Mario Vargas Llosa, a Peruvian and the most recent recipient of the Nobel Prize for Literature, Carlos Fuentes, a Mexican author, Jose Donoso from Chile. Guatemalan Miguel Asturias, Cuban writer Jose Carpentier. All these authors are firmly rooted in their homelands and although their styles vary all are justly recognized as first rate writers. You may, if you want something contemporary, take a look at the books by Roberto Bolano, a Chilean author who died recently.