I have the National Wildlife Federation Field Guide to Insects and Spiders of North America. I've been pretty happy with it so far. I like that in the table of contents, they list the insects by order and give an example picture of one from said order that's representative. They also have a list of the orders and characteristic physical features and habits of each towards the beginning of the book. It has good pictures and fair descriptions of behavior as well as key features to look for when identifying.
This one is online, but I really like this bugfinder website:
https://www.insectidentification.org/bugfinder-start.php I like that it has a couple different ways to approach your search. You can go by shape. You can choose what category of insect, what colors and what state. My only complaint is that sometimes, their definition of what color something is seems way different than mine and so I won't find something because of that. Sometimes, I just go to the type of insect I'm looking for, say butterflies of Indiana, and look through all the pictures. Sometimes I do it for a difficult to ID one, but I also like looking through to familiarize myself with the ones who live here. For me, that sets my brain up to recognize those patterns if I see them in the future and often, I'll just remember the name of the insect without having to go back and look it up.
“Action on behalf of life transforms. Because the relationship between self and the world is reciprocal, it is not a question of first getting enlightened or saved and then acting. As we work to heal the earth, the earth heals us.” ~ Robin Wall Kimmerer