The primary discussion group for alchemical / transformative larp on Facebook is Larping for Transformation, moderated by Kjell Hedgard Hugaas and Sarah Lynne Bowman.
Jane McGonigal’s Games for Change may also be of interest, but is not about larp in particular.
Other Organizations We Admire
Game to Grow was founded in 2017 on the belief that games of all kinds have the power to improve people’s lives. Game to Grow’s weekly therapeutic social skills groups help young people become more confident, creative, and socially capable using tabletop games, most notably Dungeons and Dragons. Game to Grow also works to spread the intentional application of games by traveling to speak at public conventions and academic conferences. The founders provide training and consultation services so that other therapists, educators, and community organizers can use the beneficial power of intentional gaming in their own communities, around the country and around the world.
The Zendo Project specializes in peer support training to transform difficult or challenging psychedelic experiences into opportunities for personal growth and learning. Much of their peer support method is applicable to any person experiencing a trance or altered state of consciousness, such as immersion into a game character or world. By focusing on its interpersonal techniques, I plan to adapt it for players experiencing emotional release, trauma symptoms, or other forms of negative bleed. Their training video and manual are both freely available online.