I buy frozen fire roasted corn at Trader Joe's but you can use fresh corn cut of the cob as well.
The crushed chips melt into the soup and help to thicken it.
Be sure to taste the soup and add salt and pepper whenever you add something new to the pot.
I like to buy organic canned beans and vegetables because they are so much more flavorful than other canned beans however, I don't buy organic chicken because I think that it taste terrible. I've tried different brands and different cuts and I just don't like the way that it taste.