These stories fall into the category of Romantic Oz.
Boq (Novels), Oz Wiki
List of Oz characters (created by Baum) - Wikipedia
List of Oz characters (created by Baum) - Wikipedia
Langwidere (Lost in Oz), Villains Wiki
List of Oz characters (created by Baum) - Wikipedia
The Wonderful Wizard of Oz (anime), Oz Wiki
The Wonderful Wizard of Oz - Wikipedia
Category:Oz Book Characters, Oz Wiki
Mehmet Oz - Wikipedia
Land of Oz (Literature) - TV Tropes