Ran across this ad for A320 pilots in the USA. It mentions Canadians as eligible. I don't know anything about the company and the pay is a little on the low side. I have no idea what visa category they are touting for Canadians:
** Visa sponsorship NOW AVAILABLE**
The sponsorship opportunity is
available only for Canadians, Mexicans, Chileans, and Singaporeans.
https://www.latestpilotjobs.com/jobs/view/id/17496.html