You can try looking in local shelters. Some might get an angora from time to time but it is rare. Some shelters and rescues are not great at breed ID, so may label a lionhead as an angora, so it is important for your to look carefully at any photos and maybe contact them if it will be a long trip for you.
You can also try kijiji or other classifieds websites. While this is not the best way to get a rabbit, you might find someone who has to find a new home for their rabbit.
Find a local rabbit breeders club. They may be a breeder who has some angoras for sale. They might also have slightly older ones who could be retired from breeding or just not needed in the breeding program. Even if there are no breeders in your area, there could be someone who has an angora that they are willing to sell. Also try doing a google search for angora breeders in your area as that can being up people who are not part of a club.
Ontario tends to have a fair number of breeders and there should be some rabbit shows. You can go to a show and see what is there. Since many breeders travel to shows, it can be a good time to get a rabbit that you would otherwise have trouble getting due to the distance.
Most breeders are helpful, so don't be afraid to e-mail someone and ask if they know of any breeders. If you end up getting an angora from somewhere else (like a rescue), you can contact a breeder for help with grooming or other care if needed.