Initial Setup for Business Computers

I am trying to find a way to set up the new computers for my office in a general way instead of using a specific Microsoft account. I'd like for my recruiters to be able to work back and forth between offices, set down at any computer and start working. They would need to log in to their specific office 365 accounts then. That way they could work from anywhere within our organization.

In previous versions, I could create a local account that just had the company name and a select password for each desktop. This allowed anyone to use any computer and not have access to another employees' files or data.

Any suggestions or help would be greatly appreciated.