Additional Images alongside main Product Image

Hi,

I want to showcase 2-3 images of all my products on the product page. That is, each product page needs to have 2-3 product images so that the customer can make an informed decision. However I only see an option to upload one product image while editing the page. I do not want to go for variable product as I dont have any variations of the product and all I want is a few additional images of each product. Pls. advise.