You should essentially claim asylum in Vancouver, quarantine and then go to Toronto. Asylum claim timelines vary from 6 months to over 12 months depending on how long it takes to get an initial eligibility hearing. Although welfare is available if needed would suggest working if at all possible. Asylum claims are risky so really should always be the last resort. Assume you have explored economic immigration programs and consulted with a Canadian immigration attorney about your chances of success.
Assume you currently meet the travel exemptions.