Having company for an early supper tomorrow and my plan was to make fish chowder as the main course. Have all the makings on hand. Just learned one guest is allergic to shellfish so there goes my clam broth base(homemade too)! The only other stocks I have on hand are homemade beef, chicken or canned veggie. The weather here is horrible, in the middle of a snow/icestorm so would prefer not to have to run to the store. Are any of these good subs?