The thing about magical realism is that it's all true in the world of the story- in magical realism, when a girl suddenly floats up to heaven, she really floats up to heaven. García Márquez took all the weird folklore of Colombia and a century of history, and put it all together, treating them as equal. I lived in rural South America for a couple of years and heard the stories people would tell about spirits and such, and some of it is a lot like what García Márquez puts in his novels. But magical realism in general sits in a weird place, messing with the usual reality/fantasy distinctions, which I think is why the English-speaking world has very few good examples of it, and it just honestly won't work for everyone.
If magical realism isn't your thing, several of the Latin American Boom authors wrote in a more realist way, while often being more adventurous with their style. Carlos Fuentes' The Death of Artemio Cruz is a good one, as are Mario Vargas Llosa's books, like The Feast of the Goat. Or, for some contemporary short stories that take elements of magical realism and employ them to add to the horror of stories that are already fairly disturbing, Mariana Enríquez's Things We Lost in the Fire is great.