Pressbooks has an H5P plugin that allows authors to create rich interactive content within the platform. H5P has a wide range of content types, which can be found on their website. Additionally, H5P maintains a list of each content type's accessibility status measured against WCAG 2.0 AA standards. Below are examples of content that can be embedded in Pressbooks.
Sample taken from Português para principiantes published by the University of Wisconsin-Madison.