Refining Particle Usage for Natural Flow

Hi everyone, Emma here. I've been studying the nuances between particles when explaining a complex 手続き. While textbooks provide the logic, I find that in casual conversations, native speakers often shift between 'wa' and 'ga' in ways that feel intuitive rather than rule-based. For instance, when discussing the 評判 of a local service, I'm never quite sure how to sound natural rather than textbook-stiff. How do you all