There are many ways in which you could format your 26 desks. I'd consider the functional needs of your classroom (who needs to go where, when, how, etc.).
Check out some resources on the Learning Commons from various organizations on individual rotation: https://app.learning-commons.org/app/search?q=individual%20rotation
You can also find TLA's strategies around Use of Space here: https://practices.learningaccelerator.org/do/practices/integration?subtopic=use-of-space&grade=&audience=&stage=
Hope these help!