In a pot, bring chicken broth, white onion, garlic, chipotle peppers, roasted red jalapeno peppers, pepperoncini peppers, dried Chinese hot peppers, and long hot chile peppers to a boil. Simmer on medium-low heat for 15 minutes until peppers are softened.
Pour the mixture into a blender. Secure the lid and pulse a few times before blending until smooth in batches.