It's a huge topic. I'd suggest starting with Andrew Lang's Fairy Books - (I'd post a Wikipedia link, but the site won't let me) - they're old, but when I was a kid (I was born in the 60s) they were still around and people read them in newer printings. There's also Fairy Tales of Hans Christian Andersen; again it's old, but it's still read.
But do you specifically mean English (as in the country on the same island as Scotland and Wales) fairy tales, or tales in the English language?
Something else to think about is that sometimes people talk about fairy tales when they really just mean children's books. What sorts of things are you going to translate, and how old is the target audience?