I would stay away from Organix bars which are a quarter sugar or this puffs / rings which are basically doritos for babies. Read the labels, if you have 26 g of sugar /100 g, leave on the shelf, if it says maize or corn flour and oil (That's doritos) leave on the shelf
Why give a child the habit of an ultra processed and highly unhealthy food, I am not sure. You are giving your child healthy fruit why switch to junk food? If you want variety, switch fruit (pear, apple, watermelon, berries, banana, peach, apricot, ....) or add some veggies carrot, cucumber, cherry tomato (I know technically a fruit) , even green beans my kids used to eat green beans on the go,
Or roll a slice of ham around a bread stick. But really, stick to real food @Laura1609 and sometimes, when in a park, a croissant or similar is fine, but avoid the junk route