What are some hypoallergenic cat breeds?

Hey!!!:) I was looking at ragdoll cats to buy but then I asked a different question her and people were saying that those kinds of cats are not hypoallergenic and since my dad is allergic I cant get one. So now what breed can I get that is very affectionate and loves to snuggle and is not very wild? And are ragdolls like that? Do they have that personality? And since Ragdolls are not hypoallergenic why are they so expensive? and tell if they they are hypoallergenic. Thank you!!!!!!!!:)