Suggested way to extend Brand

Let's say I'd like to extend a Product from this demo "https://ecommerce.laraship.com/shop" by adding in each page some details about the Brand, like a story with text, images, etc. about each company Huawei/Samsung/Apple etc. and show it on each product page. I guess that in order to show it I have to modify the show.blade view of resources/views/products, fine. But what is your suggested view where to put all information that I want to add? I can't add Custom Fields to the Brand model. Also, is there a way to make brand clickable so that when I click there I see the same story (with text, images, etc. above) and all products from that brand? Side question: what's the difference between the models SKU and Product?! I am confused