Spray slow cooker with nonstick spray.
Add beans, cream cheese, sour cream, 1 cup Monterey Jack, salsa, chipotles, adobo, onion, garlic, cumin, and paprika.
Stir thoroughly; cream cheese need not fully mix yet.
Cover; cook on low 3 hours, stirring hourly for even melting and to prevent sticking.
About 30 minutes before serving, partly mash beans with masher or fork for chunky-smooth texture. Add remaining 1/2 cup cheese.
Taste; adjust salt and heat if needed. Top with cilantro, jalapeƱos, and tomatoes; serve warm with tortilla chips, pita chips, or crisp vegetables.