The woods. near, far, big, small. go outside with the intent to eventually learn what every single plant, fungi, and animal you see is rather than with the intent to extract food from nature. try everything once, ask "can i eat this, is this medicinal" for every single plant and mushroom and go find out. you'll quickly pick up on what works for you locally, and what's good enough eating to be worth the trouble for you personally.
I forgot nebraska was even a state, if you're after morels then nobody is going to tell you where to find them in nebraska - you've probably got a NAMA associated Mushroom/Mycology club, join that and find mentors. you'll walk through the woods collecting things, lay them out at the end of the day and ID all of it. probably botanists in that club with an encyclopedia of latin names for every living thing in the woods near you.
Theres a few pretty clear-cut objectively superior Foraging field guides for plants and mushrooms, google that and buy them.
Best thing to be looking for right now is Chicken of the woods (is this out west?), oyster mushrooms of all kinds, Amanita Muscaria and A. pantherina, and Gasnoderma (reishi) species. if you've got nothing but pine trees then it's about time for suillus Boletes and the Edible Amanitas going strong through fall til it's goes below 50 consistently.
if you're really serious, get serious about the I-naturalist app and
mushroomobserver.org and contribute observations while you forage.
pic related some Chicken-fat Boletes (suillus americanus) from beneath an eastern white pine, growing immediately next to A. Muscaria around this time last year.
