My dad has some experience in growing the Chicken of the Woods mushroom which has many medicinal benefits. All he did was throw some scraps in the back of his house under some trees and by the next season they started growing.
Here is a good guide as well if you are looking to grow any medicinal mushrooms from scratch in your own house:
Also, there are many grow kits on Amazon as well that have pre-inoculated substrates with the spawn of your choosing.
Hope that helps!