This is almost a take on a Caprese salad substituting the tomatoes for nectarines and burrata for mozzarella.
You can substitute the nectarines for peaches or even grilled peaches and the burrata for mozzarella but make it good mozzarella. You could even use creamy goat's cheese or even juicy plums...? If you don't have white balsamic use dark balsamic or even white wine vinegar. All very adaptable and a great summer salad.