The only ones you'll reliably find are the McClure's Garlic & Dill, at M&S. They're really, really good, though.
Beyond that, even the American specialty shops, or American sections at supermarkets, seem to neglect pickles. You can sometimes find Vlasic, Heinz or other kosher dill pickles, but it's hit-or-miss. If there's such a shop near you, you could try requesting them.