Unless you have an adult child who is a Canadian citizen or permanent resident and meets the requirements for parent sponsorship - it's extremely unlikely this is going to be feasible.
Canada has no retirement immigration class.
Given your age, the only thing that might make it feasible (apart from having kids who are Canadian) is if you were able to secure a full time job in Canada first that was supported by an approved LMIA. An LMIA is something that your employer must obtain (which costs quite a bit of money and takes a lot of time) that proves they advertised the role to try to hire a Canadian, couldn't find a Canadian with the required skills and for this reason had to hire a foreign worker.