toronto modern shops?  

a few
There are quite a few good ones. Mostly on the east side of the city on Queen street.
ZigZag, MachineAgeModern, Philz, Ethel, and Pazo are all pretty good.
All close together.
On the Westside... Queen west antiques is the only one I can think of.
Then there is designaddict online who is in Toronto who specializes in Scandinavian and of course me, PORCHMODERN. I haven't updated my site in years and sell things quickly but I may have a few choice items available if you want to look me up.
Mostly high end Scandinavian, European, and American design.
Hope this helps.
Happy Holidays.