In this recipe, I have used cheddar cheese. However, you can use different cheeses instead of cheddar in jalapeno and cheese sourdough bread. The types of cheese to be considered are Monterey Jack for a mild and buttery flavor, pepper jack for a spicier kick, Colby for a milder alternative, Gouda for a nutty richness, or Swiss for a mild and slightly sweet taste. Each cheese will bring its own unique flavor profile to the bread.