Check the instructions for schedule C, in the book is a table called "Principal Business or Professional
Activity Codes". Find a code that most closely matches your business. From your user name I'm going to assume you deal with baked goods, and your question appears to refer to Food Delivery. If you are a bakery then there is a section for Retail "Food & Beverage Stores" - which I think you fall into 445290 "Other Specialty Food Stores". If you business is delivery you might fit under "Other Services" 812990 "All Other Personal Services".
Review the lists to find a category that better fits your understanding of your business.
