Google provides a total of three Google Shopping Ads types as follows:
Product Shopping
With Product Shopping Ads, each of your products will separately appear in a form of specific, single, visual card.
Showcase Shopping
With Showcase Shopping Ads, each of your related products will be grouped together and collectively displayed in a form of category, visual card.
Local inventory
With Local Inventory Ads, your product cards are specifically displayed when consumers search with keywords of products and specific locations matching your products and store location.