Hey @maxim640 !
That is a very smart idea to group your products into their own categories/brands. This can be done by creating collections in Shopify and then assigning the appropriate products into each collection.
For example, you can create a collection for Brand Name A, Brand Name B, Brand Name C, etc. and then manually add the respective products into it. We have a guide that covers how to create and configure manual collections here.
You also have the ability to create an automated collection. These collections are created the same way as a manual collection but instead of adding products into the collection yourself, you set a condition(s), or a rule, to determine when a product will be added into the collection. I personally like automated collections when you plan on having a large inventory as it will save you a lot of time in the long-run. You can learn all about automated collections and the different types of conditions you can set for a collection here.
Once you have set up the collections to your liking, you will need to add them to your navigation menu at the top of your homepage. This way you customers can find them on your website and hopefully make a purchase! We have a step-by-step guide on setting up your drop-down menu here.
Let me know if that helps!
Thank you so much for your tips... I was looking more to put this collections in a page with their brand logo. I created the collections like you said and can link to each one from the menu, but I found a tutorial to do exactly that.