You can choose a style you want to show the product variant listing on the product page. You have 4 options to choose from – List, Select, Swatch, and Matrix/Grid view. If you choose "List", the options will show on the product page in the "List" view. Display all variants with the quantity box for bulk orders.

If you can want to avail this in your Shopify store, then It is possible with the "MultiVariants - Bulk Order" app. Display in the "List" view is available in the free package. You don't need to pay to avail of this.

To get it, install the "MultiVariants - Bulk Order" app in your Shopify store.