I'm writing a story concerning human interactions with the fey / fairies, loosely borrowing themes from Christina Rossetti's Goblin Market.

I'd like to do some further reading of folklore about the fey, as well as ideas from song and classic fiction including poetry, plays, ballads and so-on.

I know that's a wide brief, but if you were to suggest for example a dozen great sources for reading and drawing on, please suggest away. Images are also welcome!