Been studying plant-fungal interactions for about 10 years, including a master's degree I dropped out of and never actually finished* so I'm full of fungus facts i don't really get to use ever.
*Actually did all the course work and lab work but didn't finish my thesis in time
My biggest tips:
And there are some kinds of mushrooms that like very specific conditions. Like morels (at least the west coast USA ones) will grow like crazy the next few years following a forest fire.