I sympathize. It’s so much harder to get good salary info in Canada than in US. Here are a few suggestions:
PayScale: https://www.payscale.com/research/CA/Job=Food_and_Beverage_Manager/Salary (Canada)
https://www.payscale.com/research/CA/Job=Food_and_Beverage_Manager/City# (Regional but doesn’t include Calgary–does include Edmonton)
Alberta govt, https://alis.alberta.ca/occinfo/occupations-in-alberta/ (salaries by occupation)
Alberta Hotel & Lodging Assoc, https://www.ahla.ca/
Indeed.com https://ca.indeed.com/jobs’q=Food+Beverage+Manager&l=Calgary%2C+AB (Job listings–check salary ranges at left)
If these sources don’t work, we can set up an HRI online survey asking our users where they go for their salary info. Let me know at glennd@bongarde.com Good luck. Hope that helps.