Flexible Seating is a great option for students, but you need to have a management plan in place to keep your classroom running smoothly and with minimal disruptions.
These Google Slides include a variety of popular seating options.
You can add and delete the number of seats you have available by clicking the black dots and deleting them, or clicking and copying and pasting for more!
I have students use a clothes pin with their name on it to make their selection. They clip it onto the black dot to show the sat is taken.