Here are some fruit substitutes that can serve a similar purpose:

• Fresh Sour Cherries: They offer a comparable texture and tartness and work well in sauces and meat dishes.
• Plums: As stone fruits, plums provide a sweet yet tangy flavor that can mimic cherries in chutneys and compotes.
• Apricots: With their slightly tart nature, apricots can be chopped and used in salads or as a glaze for meats.