You created the WooCommerce shop & product archive page with Beaver Themer add-on and Post – Grid module. By default it is displaying the featured image of that product. I shall display the 2nd image on hover at product image position. In this article I am sharing the complete procedure for it.
Assuming that you already created the shop or product archive page with Beaver Themer and Post module (I have not PP or UABB add-on).