Regular prices for my location in the US Midwest are around $11 for a 12-pack of Coca-Cola products — that’s twelve 12oz cans. Sales are frequently run for “buy 3 (12-packs), get 3 free”.
You can get roughly the same per-can sale price by buying flats of 35 cans from warehouse clubs like Costco every day without waiting for a sale, but the warehouse clubs don’t carry every Coca-Cola product, usually just Coke, Coke Zero Sugar, Diet Coke, and Sprite.
Pepsi products cost roughly the same.