What is the best legitimate Signing Agent Course?

Hi everyone. I’m just starting out and trying to gather some information before deciding on which course to take myself. I’m leaning towards Carol Ray’s course. I’m in Park Ridge Illinois ( O’hare area) and was wondering if its important to choose a course that is more regional? If any even are out there? Thanks in advance!!

I used to live up there many years ago from 1988 - 1991 when I was in the 10th Mountain Division based in Ft. Drum. Not sure if I spent more time in Watertown or Kingston, ON but loved the area in general.