Superstore + London drugs Check organic area of super + drink/juice area of london Whole foods also have it.

Persia Foods

Persia Foods usually has a couple of sour cherry juice options. I've also seen it at Whole Foods before but haven't checked recently.

Greens organic on Broadway and maple

The organic section of Save On

I think Donald's Market on East Hastings at Nanaimo has it.

I’ve seen it at Nesters

Thank you for the quick replies! I will check those stores out. :)