Healthy on the go snacks for toddler

My son is 2 and when we’re out and about he gets a little cranky and I like to give him snacks so he won’t cry. When he was smaller it was easier because he wasn’t as picky but now he is. He loves cookies but I dork give him that many that often and he also started liking granola. He does like apples and bananas but that a little hard to keep in the car for now. Are there any recommendations? What do you usually give your kids as a snack when running errands ?