You definitely have to check out **Paul Stamets' ** books!
Growing Gourmet And Medicinal Mushrooms is, as the name already suggests, about how you can cultivate them and what different kinds of them exist, with their according use.
And in Mycelium Running, the author explains the many potential use cases, e.g. for mycoremidiation (pulling toxins from the environment), medicine (antibiotics, cancer therapy, etc.) and their ecological role (mycorrhizae, decomposition of dead matter, and more).
Those two are must-reads imo and exactly what you want.