I know not much about these things….at all, what’s interesting more to me is the how and why you all here that are in the know became interested and how did you learn? I’m a tree guy, can identify a good many in the northeast here but shrooms and other fungi…. Never had the guidance.
One species at a time. My dad taught me sheepshead aka hen of the woods aka maitake but that was all he really collected. They're still my favorite.
From there I slowly learned chanterelles, black trumpets, and morels. All pretty unmistakable, all super choice eating.
Couple summers ago I picked up some porcini/boletes. They can be a little trickier but the "bad" is mostly just not good to eat, not deadly.
Chicken of the woods are another super easy one but some people can't eat them, including me.
Oysters are pretty easy to ID and one of the most delicious, but I almost never see them around here.
Puffballs and shaggy manes a couple more easy to ID and decently prevalent, but flipside I don't really care for eating either.
This spring I picked up Dryads Saddle because it was the worst morel year I've seen and I actually thought they were really good eating in spite of their reputation as not being the greatest.
All of the above can be pretty reliably ID'd with visual and smell. I don't do any spore printing which is a technique you need to learn to delve into the world of LBMs. LBMs or Little Brown Mushrooms, there are some edibles, but good luck. You need to pull out all the stops and I would recommend a mentor for learning those.
My method is learning the toxic look alikes, and actually seeing them in person to be able to 100% distinguish. For resources I'll usually just googele different terms and comb through 7 or 8 different sources with a few of them being academic credentials, a few being more bloggy.
But as far as learning lookalikes, take Chantrelles for instance, pretty much the only close toxic lookalike is the Jack o Lantern. Once you see each one side by side, you'll never mistake them. Or maybe some people do, but if you can observe and ID trees you can probably pick up mushrooms. Maintain an objective frame of mind about it. Don't find a mushroom and wish it to be edible and if you have any doubt whatsoever, don't eat it, or at least sample it in tiny progressions to see how it sits.