Costco carries large jars of green olives usually stuffed with a garlic clove, we like them. I prefer the pitted Kalamata(Greek) Olive, kind of a cross between green and ripe...very tasty. Growing up olives were always a delicacy, we never had much money and olives were never a necessity. My kid brother would ask for olives as a birthday/Christmas present, he loved black olives, I preferred the classic green olive with pimento.
Aldi's usually has a nice variety of stuffed olives. We usually have the garlic stuffed and blue cheese stuffed olives around the house. They are tasty, if you like olives.