Higher end MFPs do not normally scan directly to computers. They scan to email or scan to network folder and then the user navigates and retrieves the document. Scan to computer is normally a USB function too, not a network function.
If you are hoping to complete a real scan to computer operation then you are going to need to go with a smaller Laserjet or officejet product. You would also need to install the full software solution on each machine and manage them accordingly. Scanning directly to a computer when managing multiple computers isnt going to save you or your users any time, this is a solution intended for one or very few computers. It is much easier to setup and manage scan to email or scan to network folder.
If you want specific models that can fit your needs then contact HP Sales and speak to a rep. You can run your specs by them and have them highlight the best options. Noone here can realistically suggest a specific model for you without knowing what your printing enviornment is like.