You may have better luck posting in the Canadian Forum. Have you searched online? wowjobs.ca, workopolis.com and ca.indeed/RPNjobs has some listings.
Runnymeade Health Care Centre has RPN postings on their site and Bridgepoint Health has some openings.
Are you signed up with HFO's new grad program? When I was still in Toronto looking for an RN position last year, there were more postings for RPNs than RNs on their site. Also try indeed.com and set up a job alert.