sort our business one drive out and delete multiple accounts on 5 laptops

I'm looking for a freelancer to help my business manage our data, improve efficiency, and ensure data security and privacy. This includes sorting our business OneDrive and deleting multiple accounts on 5 laptops. There is no specific method required- we simply need a more organized system. However, it is necessary that all data be recovered and backed up before any accounts are deleted. If this sounds like a project you could help with, please apply and we can discuss the details. Thank you!