Thanks, friend of satan! To my knowledge there is no such thing as antiallergic cat breed, although there are cat foods that contain enzymes that destroy tue protains that cause allergies within the cats but without damaging them although they are not 100% efficient and are a bit more expensive
https://globalpetindustry.com/article/scrutinizing-science-behind-allergy-reducing-cat-food
Hypoallergenic GMO cats are possibly coming in the future. I think I read before that there doesn’t seem to be a downside to coding out the protein/s that cause most allergies.