How to add a person as a user for a form? And that person can also run report

If you're referring to the sub-user that can edit the form and check the submissions without opening your account, unfortunately, it is only available to the Enterprise Level.

You can check this page for more information: https://www.jotform.com/help/232-How-to-Share-Forms-with-a-Sub-Account-User

If I misunderstood your question, please let us know. Thank you.