Well, you could put a video somewhere on your product page, but what are the chances your customer will actually see it? You could add more images, but it might get confusing seeing images which aren’t relevant to the selected variation.
Fortunately, WooThumbs for WooCommerce Nulled can help with all of these issues. WooThumbs Nulled brings with it the ability to completely customize the image gallery layout to enhance your product page, embed video and other media directly into the image gallery so your customers are sure to see it, and also to add multiple images to a variation.
Demo : https://iconicwp.com/products/woothumbs/