In a large mixing bowl, combine the cooked rice, shredded chicken, cherry tomatoes, cucumber, and red onion. Toss gently to mix all the ingredients evenly.
In a separate small bowl, whisk together the mayonnaise, apple cider vinegar, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth.
Pour the dressing over the rice and chicken mixture. Stir gently until everything is well coated with the dressing.
Cover the bowl with plastic wrap and refrigerate for at least 30 minutes to allow the flavors to meld.
Before serving, give the salad a gentle stir and top with crispy fried onions and chopped parsley for garnish.