in general, you are going to find that even bars that appear to be low in calories or lower in fat, have all kinds of fructose syrup, canola oils, etc...
i incorporate a lot of greek yogurt cups throughout the day when im hungry... fuck, even an apple will help to combat some hunger... drink plenty of water, throw in a meal replacement drink, cans of tuna, etc... there's a hell of a lot better options out there than bars... the best protein bar i have found macro wise is the pure protein bars... trust me, there are plenty of options out there for you...