These "Simply Protein" bars are selling at our area Costco for something like $18 for the 15 multi-flavor pack.
They are definitely of the variety that tastes vaguely like a Rice Krispies bar, but a bit grainy (it's soy protein). But they are not awful, have 15g protein, and low sugar (via sugar alcohols). Not a bullseye but at the Costco price, better than the Amazon price linked above, a decent option.