Need Help!! Best supplies for kids 0-3

The hubby and I are about to start fostering children from 0-3. We are looking for advice on all the best products for children that age. Furniture, bedding, toys, car seats, EVERYTHING!! Haha

We don’t have any children yet, and even though I’ve loaded up my amazon cart, I’m still worried that I’m not getting the best items or the most useful! Send help, haha!