Look into virtual machines, don't have a lot of experience with them and definitely not on chromebooks but it might work.
Quick search lead me to this: https://www.reddit.com/r/chromeos/comments/illxsv/complete_guide_to_use_virtual_machines_on_a/?rdt=51535
https://www.google.com/amp/s/beebom.com/install-windows-10-chromebook/amp/