How can I create a report for all the people who have filled out a form for us?

You can check this guide for more details about how to create a report with your data: https://www.jotform.com/help/326-how-to-create-form-reports-in-jotform/

You will find the details about the available reports Jotform currently has, if you're looking for something different, you can provide us more details and we will proceed escalating the request to our back-end team.