The best option the school should do is to get a cat or a dog because they can be interacted with, like playing with it. Also dogs know when kids are stressed so they would stop playing and would just stare at you and they might come up close to you and make you feel better (live science).
Although some pets like cats and dogs make some children allergic, animals with no hair, fur, or dander (dead skin flakes) can be an alternative. The reason kids are allergic to pets is because of the pollen, urine, dirt, and dander in their fur, skin, or hair said by the “Asthma and Allergy Foundation of America”. If the child does get a allergic reaction the teachers should see that the child would have a stuffy nose, itchy skin, and swelling.
Although dogs might bite children you could get an old dog or cat that is trained. The reason they should get an old dog or cat is because they are cheaper and they don’t bite or scratch that much. The reason the baby bites more is because it would feel like it is danger so it would have to defend itself. If they bite it would be from it wanting to play with a kid. Old dogs like to sleep on a human or child because it makes them feel better, and the only time they would attack would be when they are feeling like they are getting