There are 100s of types of psilocybin containing mushrooms in the natural world and new genetics are being discovered with every survey. Humans are cloning more potent mushrooms that are now available on the streets, so as with anything dyor with strains and potency!

With that said, golden teachers or similar potent mushrooms are a good introductory strain. Potency is variable and more important than strain so a good home test kit that can measure active content still needs to become available or lab tested if sold in dispensaries.