I haven't used OSX for a few years, but here are a cople
https://www.thefanclub.co.za/how-to/dd-utility-write-and-backup-operating-system-img-and-iso-files-memory-card-or-disk
https://www.cyberciti.biz/faq/how-to-create-disk-image-on-mac-os-x-with-dd-command/
https://shirt-pocket.com/SuperDuper/SuperDuperDescription.html
I can't comment on the specific device, but the closest to chrome os you can get without buying a chromebook is https://www.neverware.com/freedownload/
What state are you in? In California, it is easy to get Win10 Edu keys from http://store.collegebuys.org/ with an edu email address, Other schools should be https://onthehub.com/download/free-software/windows-10-education-for-students/