Thanks I know these stores also I have been to all of them although I haven’t been to them in a while.I know there's a "Balkani" charcuterie in the Jean Talon market, but I am not familiar with their other stores.
There are two small Eastern European stores on St-Laurent in the Plateau, one Croatian and another Hungarian, and next door there is a bigger store "La Vieille Europe", which is actually a good place to buy coffee beans (they roast them in store.) The staff are knowledgeable and friendly, I followed their advice a few times and they never let me down.
They are all good deli stores and have many imported goods from these Eastern European countries
With regard to the Balkani stores yes you are correct it is not downtown it is in the Jean Talon market which btw is a great place to shop for all fruits vegetables pretty much any type of groceries a long time ago when I lived in Park Ex I always shopped at the Jean Talon market.
The other Balkani store is on Grand Allee in Brossard on the South Shore.