Step 1: Go to Online Store -> Customize -> Theme Settings – > Products Grid

Step 2: Scroll Down to “Product Labels”. Here you can set sale and three custom labels for your products.

Add label names you like to show on products.

Step 3: Go to Products, select the product you want to label, and add label text as a product tag. I.e., if you want to show the label “Best Seller,” then set the same text to the label and add product tag with the same name ‘Best Seller.’