Many specialty candy sites allow you to enter your email for "Back in Stock" notifications. Since these were limited-run, it's rare for them to return unless Hershey re-releases them, but it’s a good way to catch a stray shipment. :

: Platforms like Candy Funhouse or Candy Warehouse maintain listings, though they frequently sell out. A Guide to Finding Discontinued Twizzlers

Twizzlers Key Lime Pie Filled Twists, Chewy Candy, 11 oz. Bag

: While often listed as out of stock, third-party sellers occasionally list them on the marketplace.

Twizzlers Key Lime Pie Filled Twists, Chewy Candy, 11 oz. Bag - Walmart.com. Rollbacks & more.

Since these have been out of production for some time, always check the "Best By" date if it's visible in listing photos. :

: Check the "Sold" listings to see the actual price people are paying so you don't overpay for "rare" stock. Visit Discount & Liquidation Stores :

Because this item is no longer manufactured, your best chance of finding it is through secondary sellers or niche candy stores: