Good question. It's kinda hard to answer without knowing what other ingredients are available in the pantry and refrigerator.
But, just those 4.
I would carefully pull the skin off the chicken.
Dice some of the chicken meat and the tomatoes and crush the crackers. Mix it all into a stuffing and wrap it in the chicken skins like a wrap. Serve the salsa over them. Hoping the heat of the salsa will pair well with the sweetness of the cracker.
Or, shred and chop some chicken with the skin, crush some crackers and mix it together with the salsa and make little cakes, like crab cakes. Pan Fry them and make a rose garnish with the tomato.