CygnusX Variant Image Preview adds a simple admin interface for creating image preview sets and displaying them with a shortcode.
Each preview can include a default image, display size settings, optional maximum width, and multiple variants with labels, images, swatch colors, and URLs.
Plugin page: https://pluginhatch.com/downloads/variant-image-preview/
Author: Stephen Engelking
Author URI: https://www.cygnusx.com