Adopt A Dog 

Toronto Animal Services: North Shelter, East Shelter

https://www.toronto.ca/community-people/animals-pets/adopt-a-pet/

The Toronto Humane Society
https://www.torontohumanesociety.com/

Etobicoke Humane Society

https://etobicokehumanesociety.com/

PAWS - Peoples Animal Welfare Society

http://www.pawscanada.org/adoptions.html

Black Dog Rescue (not only Black Dogs)

http://www.blackdogrescue.ca/

Redemption Paws

http://redemptionpaws.org/

SaveMeDogRescue

http://savemedogrescue.ca/

TEAM Dog Rescue

http://teamdogrescue.ca/

Adopt-A-Dog/Save-A-Life

http://adoptadogsavealife.com/

Save Our Scruff

http://www.saveourscruff.org/about-us/

Just Paws Animal Rescue

https://justpaws.weebly.com/adoption--fostering.html

Pugalug Pug Rescue

http://pugalug.com/

Petfinder

https://www.petfinder.com/search/dogs-for-adoption/ca/ontario/toronto/

Ontario SPCA and Humane Society

http://ontariospca.ca/

Rescue Dogs Match

http://www.rescuedogsmatch.com/about-us/

KOCA Dog Rescue

http://kocadogrescue.org/organization/

Ugly Mutts Dog Rescue

http://www.uglymuttsdogrescue.com/