How to redirect to multiple URLS based on short form answer?

Hello, 

I am looking for a way to set up a form where a user can enter their username into a short form field, then based on the username entered, they will be directed to a unique URL. 

Example: 

Username “RoyalBee” will direct to https://puginarug.com/
Username “OtherName” will direct to https://optical.toys/

There could be a few thousand of these username/link combos, so preferably, there is a way I can uplaod a spreadsheet. 

Thanks!