Custom Fields to Widget in Storefront

Hello all. I’m wondering if anyone could be of assistance in what I’m trying to do.

I set up a WP site using the Woocommerce Storefront theme. I would like to attach a manufacturer to each product, then have a sidebar menu showing all the manufacturers, each linking to that manufacturer’s products. I’m already using tags and categories for other things.

I figured I could add the manufacturer info with custom fields, but can anyone run me through how I’d go about getting that data into a widget and making them links?

Thanks much!