Select the saute function of your instant pot. Coat the bottom of your pot with olive oil. Once hot, add onion and saute for 2-3 mins. Add in minced garlic, jalapeƱo, poblano pepper, and corn. Saute for another 2 minutes.
Mix in cut chicken, both enchilada sauces, black beans, and chicken broth. Secure the lid and select manual. Cook on high pressure for 8 minutes.
Use a quick release and remove the lid. Keep the instant pot on, add in cream cheese. Stir for another 3-4 minutes, or until the cream cheese melts.
Serve hot, and garnish with sour cream and/or green onion.