Using Contact List Column after Form is Complete

So I have been through the forum and know that currently the contact list is not available in forms unless you add a drop down list of names for someone to select. This isn't possible for me because the maintenance of this would be crazy.

What I wanted to know was, after the form is complete and someone enters their name in [NameColumn], is there a way to have a separate name column, set up as a contact list column, where I can just use the =[NameColumn] formula and the name in the new contact list column would produce a contact list name, not just the exact same text name. My goal is to avoid having to update the [NameColumn] every time someone fills out form just to get the contact list of their name so I can assign a workflow to them.

Hopefully this all makes sense. Thanks!