Use Turnitin to allow students to do Peer Review on documents
https://help.turnitin.com/feedback-studio/lti/instructor/instructor-category.htm#PeerMark

Template Exclusion allows you to supply essay questions, so they would be excluded from originality checking
https://help.turnitin.com/feedback-studio/turnitin-website/instructor/similarity-report-exclusions/excluding-assignment-templates.htm

A video on how to use Draft Coach - Teacher Edition
https://www.youtube.com/watch?v=TLYPsjcN9pc