I can show you how to get a report for your Gross Revenue. However, in QuickBooks Online, we use the Profit and Loss Report to track the income since Gross Revenue is unavailable. You'll need to customize it so that you will get the report you needed.
In your QuickBooks company, go to the Hamburger icon.
Select the Reports menu.
Enter Profit and Loss in the search box.
Click on the Customize button and you can edit that base on your preference.