For how much is cessna 172 glass leased out to a flight school/air safari or flying clubs/company per month?

Your question is kind of like asking “How high is up?” There are so many variables to an aircraft lease that a single answer is almost impossible to find. If you’re serious about leasing an aircraft, then talk with the leasing company to get some ballpark figures for the specific aircraft you want.

Cessna 172 Winter landing at Brampton Flying Club