My foreign can collection is slowly growing. So I have to keep changing how I display/store them. Here is my current solution.
Each tray is for a different region/continent. Within each tray I have dividers separating the cans by country. As my collection grows I can add more dividers and more trays. And if the trays with dividers start to get too crowded, I can starting using one tray for each country. But I think it will be a long time before I have to do that.
So for now, my foreign cans are organized and I can easily find any can I may be looking for.