In Canada I find some of the small towns between Toronto and Ottawa to be the more charming. You can find some very intact, complete, downtowns with great colonial architecture. Eastern Ontario does grey stone very well which I love.
Cobourg and it's gorgeous Victoria Hall
https://www.google.com/maps/@43.9595...4!8i8192?hl=en
Perth for said Grey Stone (start at the top of this street and go down):
https://www.google.com/maps/@44.9013...2!8i6656?hl=en
Perth has the meandering Tay River running through it, and I love buildings built right against small rivers like this:
from:
https://www.pinterest.com/pin/400046379373020129/
Similar concept but further West near Brantford is Paris Ontario:
from:
https://ivebeenbit.ca/paris-ontario-tasty-road-trips/
Elora and Fergus are close enough to booming Kitchener-Waterloo that they've seen good investments in their downtown while still maintaining a small-town feel.
Elora:
from:
https://www.atraveldiary.com/explori...elora-ontario/
https://www.google.com/maps/@43.6811...2!8i6656?hl=en
Fergus:
https://www.google.com/maps/@43.7055...2!8i6656?hl=en