Customers use the collection page sidebar filters to view products with specific tags. Categorize and format your tags using the By group setting, like this example from the Supply demo store.
Add your tags through the products admin
First, you add the organizing tags to the Product admin ( Products > Edit product) in this format:
Interest_Animals, Interest_Art, Interest_Cooking
Activate group setting in theme editor
In the theme editor, you can enable the By group setting, found under Sidebar.
To get here, go to Customize > In the right-side preview, open up any collection page (or select Collection page in the page dropdown) > in the left-side settings column, you will see a section called Collection pages > In here you can select By group > Save