Gremlin offers a solution to help engineers prioritize reliability work by using their Reliability Calculator, which assists in deciding where to focus efforts across multiple services within an application's architecture. Tammy Butow, an expert with a decade of experience, advises prioritizing services that are critical and struggling but not beyond recovery, suggesting that improving a "B" service to an "A" yields more value than trying to salvage a "D" or "F" or trying to enhance an already "A" service. The Reliability Calculator allows users to input details about their services to receive a reliability grade and personalized recommendations for improvement, making it easier to plan reliability efforts effectively. Gremlin's platform is designed to help identify and fix availability risks before they affect users, offering a free 30-day trial for new users to explore hidden risks in their systems.