@Turbo I Second Diamond Groove. Decent prices and pretty much at-cost shipping. I used to use AudioPile out in Vancouver as one of my main bricks and mortar stores. Again, decent prices on new and used and the used is well graded.
Also out in BC is Red Cat (my other in person go to when I lived there). They have a Discogs store and prices seem decent. Looks like both Red Cat and AudioPile price their Discogs items same as in the store. I have not used either online but both have always been good to me in person. The only issue would be the shipping costs as parcel post goes up the further it travels.
Just did a Discogs order for Kops recently, again new items. I can recommend them as well. Everything ships from TO so the shipping cost across the border should be reasonable.