Also, if you can find it, you might try looking at Relics and Rituals: Excalibur from Sword & Sorcery, a sourcebook on chivalric Arthurian fantasy. It's got several "fae" races ("others", the not-quite-human peoples of the old British Isles) that are humanoids but could probably be converted to fey with little trouble, which include fae reminescent of elves (two different races), dwarves, halflings, and hobgoblins. It also has ideas for using standard non-human races (including all of the PHB races plus orcs and goblins) as fey-like "others".
However, the best thing you can hope to find is An Encyclopedia of Fairies by Katherine Briggs. It's got everything you can possibly imagine about English, Scottish, Irish, and Welsh fairies from brownies and leprechauns to daoine sidhe and hobyahs. The authority on all things fey.