Your chi/corgi mix might simply not like other dogs, especially if he's attacking your current dog. There are certainly things you can do to make him more tolerant, such as a very slow introduction, but that won't change the way he feels. I would recommend a behaviorist to help you come up with a training plan, because it's too much for a bunch of strangers who have never seen your dog to offer you much advice in a rather serious situation.
Even if a behaviorist can help you with a training plan, your chi/corgi may never truly enjoy being around the husky or any other dog, and they will likely always need to be separated. The husky is likely going to get bigger than the chi/corgi, and one day she will end up killing him. You should not let your chi/corgi be around the puppy, because every time he attacks her she's learning that "other dogs are bad," and then you'll have the same problems with her.
No matter what you choose to do, you will have to keep them separated. He may never "just get used to it eventually." If you're very lucky, he might learn to tolerate her, but be prepared for if he doesn't.
Even if a behaviorist can help you with a training plan, your chi/corgi may never truly enjoy being around the husky or any other dog, and they will likely always need to be separated. The husky is likely going to get bigger than the chi/corgi, and one day she will end up killing him. You should not let your chi/corgi be around the puppy, because every time he attacks her she's learning that "other dogs are bad," and then you'll have the same problems with her.
No matter what you choose to do, you will have to keep them separated. He may never "just get used to it eventually." If you're very lucky, he might learn to tolerate her, but be prepared for if he doesn't.