We have used pita pockets before too! I forgot about it until you mentioned it, since we haven’t had it that way since last summer.
I have also added grape halves to my chicken salad instead of the raisins or crasins too. It is a great way to use up some of the extra grapes when my husband buys too many at the grocery store!
Pineapple does sound good in chicken salad as well. I have never done it myself, but a friend of mine sometimes adds canned mandarin orange pieces to her chicken salad, or throws them on top as a garnish when she serves it as a salad.
Now you’re getting my brain juices flowing again. My wife’s friend makes chicken salad with grape halves and pecans bits, and maybe some mandarin orange sections or apple bits also.