You can try the official Norwegian Cruise Lines website. They often have a section where passengers share their experiences, which are basically cruise stories. Also, travel review platforms like TripAdvisor might have numerous cruise stories related to Norwegian Cruise Lines.
Many travel blogs also feature cruise stories. You can search for blogs that focus on cruises in general or specifically on Norwegian Cruise Lines. For example, some bloggers might write about their week - long journey with Norwegian Cruise Lines, detailing the onboard activities, the destinations they visited, and the overall experience, which are all great cruise stories to read.