Teacher Tech Tutorials. Easily group students into alphabetical or random groups using Google Sheets. Since Google Sheets is a FREE part of the Google Suite, it will only cost you a few minutes of time.
There is an updated version of this group picker available now. Check it out: https://youtu.be/GRiT_iojnis
You can also find some other fun and useful teaching items at https://www.teacherspayteachers.com/Store/Education-Resource-Wall