"Kouretes and Korybantes," by J. E. Harrison, from Encyclopaedia of Religion and Ethics, Volume 7 (New York, 1908), pp. 758-760, in 9 searchable pdf pages. Attached to the document are links to additional resources. Internet Archive has a larger study of the topic by the same author, "The Kouretes and Zeus Kouros: A Study in Pre-Historic Sociology." Wikipedia has entries on the enigmatic Koryos, as well as on the Kouretes and Korybantes, the armed and crested male dancers, who had connections with Cybele/Rhea, Phrygia, and Crete, with metallurgy, and with coming-of-age rituals for boys. Internet Archive has other works by the author.