my child's teeth is slightly brown in colour which toothpaste is best for him and he is 5 year old

A. Kiddodent toothpaste very good option for you to use is totally fluoride and very suitable for you to use for your child so you can go ahead with that and along with that also I’m going to recommend you if you believe in doing home remedies then take some turmeric salt add some mustard oil into that and make your child teeth brush with it for a week it will help in reducing the brown colour