Training in OM is available through various channels, including online resources like the OM App for iOS and the Institute of OM website, courses taught in-person by OneTaste or online through The Eros Platform, and private coaching offered by certified OM trainers from the Eros Coaching Collective. Comprehensive study resources include 'The Eros Sutras, Volume 3: Orgasmic Meditation' and the 'Container & Form' document.