Friendly Witches and Rare Potions

So, normally witches are evil and almost no purpose except their houses? potions? maybe. But! How about you can turn a witch into a friendlier one? and you can interact with them and possibly give you a random potion or the rarest potion, kinda like how villages work but witches. Oh or maybe zombified witches (can be rare occurence) can be turned into a friendly witch and give you lovely potions... maybe a rare potion of healing your elytra fast or instantly, or maybe a small bottle of potion that when you break it, it gives you five or three random enchantment books.. or any benefit a friendly witch can benefit the player from. That is all. ((: