To compliment homemade soups, I would venture on the side homemade cracker side. I use this: https://www.foodnetwork.com/recipes/...ackers-2012817
as my base recipe because it takes no time to throw together.
I will substitute rice flour for the AP, rye flour, wholewheat and graham, chickpea flour, etc. I add fine ribbons of dry seaweed, nigela seeds, sesame seeds, you get the picture.