If you're interested in oral history (as written down by the interviewers), Ireland has one collection which is said to be the world's largest collection of folklore, collected in the 1930's when school children were sent out to interview the elderly in their area. They collected all sorts of info, including the history of place names, holiday practices, recipes, folk tales, ghost stories, songs, and the schedule of everyday life (on which day of the week clothes were washed, or bread baked, etc.). You can access it all online for free at this link:
https://www.duchas.ieThere are more than 250,000 interviews, plus about 11,000 photos, and you can search by parish, which makes it a good tool for people doing genealogical research as well. Some of the interviews were in English and some in Irish, and they were usually then transcribed into a neater form. You can download copies of the original handwritten pages, and if you want to help out you can transcribe the interviews into digital form (and/or translate the pages which are in Irish) and send them to the archives to help make them more accessible (as a general rule, the handwriting is very legible, however).