Without any closer information about your business its difficult to make appropriate suggestions.
So I would provide the following hint:
Have a look on our demo-platform reachable under the following URL: https://demo.solvedirect.com
User: sd
Password: demo
Here you can see more than 100 different reports. Maybe you get some ideas.
Additionally I would like to inform you about a new feature we have since we have introduced the release 7.0: Our reporting Database.
Our main business is to be an ITSM platform. We can provide a lot of different reports but there are professional tools which can do this better. Our reporting database is a separate database which is constantly up-2-date with life-data. We can provide you an user and a password and so you can have access via an ODBC-driver. In this way you can analyze your data with any foreign tool of your choice.