Turnitin can be used with Canvas if a professor wishes.
Overview: https://help.turnitin.com/integrity/instructor/canvas.htm
Creating an Assignment: https://help.turnitin.com/integrity/instructor/canvas/assignment-setup/creating-an-assignment.htm
Submitting an Assignment: https://help.turnitin.com/integrity/student/canvas/assignments/submitting-an-assignment.htm