Particularly, psilocybin interests me for starters.
Discussion
Ah okay. This is not something that's usually held in ceremony, but sometimes you can find it.
There are a lot of products being sold on the market now that contain it and it should be quite easy to find.
Use the term microdosing when you search. Perhaps try to find a microdosing coach.
For a more DIY approach they are extremely easy go grow for someone who is patient and conscientious.