Related products plugin

Hi there!

I had a quick look and found these two free plugins that will give you a related products slider;

https://ww.wp.xz.cn/plugins/wpb-woocommerce-related-products-slider/

https://ww.wp.xz.cn/plugins/woo-slick-related-product-slider/

However, I do not see that they use shortcodes. I would suggest trying these two and to reach out to their developers to see if that is possible.