Here’s a list of places that offer psychedelic truffle retreats in Amsterdam, where these seem to be legal. Truffles are effectively the same as magic mushrooms. Only an approx $400-500 round trip flight from many places of the USA.
Trusted Retreat Finder isn’t a retreat, but they help people find legal retreats and guides in the Netherlands that suit them. They only recommend retreats and guides in places that it’s legal, so primarily the Netherlands.
Psychedelic Society in the Netherlands
Truffles Therapy in the Netherlands
Synthesis Retreat in the Netherlands
Conscious Bachelorette in the Netherlands
Inward Bound in the Netherlands
GuidedTripping in the Netherlands
A Whole New High in the Netherlands
Atman Retreat in Jamaica
MycoMeditations in Jamaica
On tripsitters.org, those who may be unable to afford a multi-day psychedelic retreat can find experienced tripsitters in Amsterdam who can help create a safe setting and guide them through a psilocybin truffle journey.