There are several great fanfictions. For instance, 'Lillie's New Beginnings in Alola'. This fanfiction starts with Lillie arriving in the Alola region and her journey from being a bit shy and uncertain to becoming a confident Pokemon trainer. It beautifully portrays her relationship with her starter Pokemon. Another one is 'Lillie and the Legendary Pokemon'. In this story, Lillie gets involved with a legendary Pokemon in the Alola region. It's full of exciting adventures and mysteries. Also, 'Lillie's Alola Champions' is a fanfiction that follows Lillie as she aims to become a champion in the Alola Pokemon League, with lots of interesting characters and Pokemon interactions along the way.
Well, I know a fanfiction called 'Lillie's Destiny in Pokemon Moon and Sun'. In this story, Lillie discovers her true power and purpose in the Alola region. It has great descriptions of the Pokemon battles she participates in. Then there's 'The Lillie - Pokemon Bond' where it shows how Lillie forms special connections with different Pokemon. And 'Lillie's Ascent in Alola' is also good, which tells the story of Lillie rising to become a great Pokemon trainer and protector of the Alola region.
Well, I've read a fanfiction called 'Lillie's Dream Quest'. In this story, Lillie has these vivid dreams that lead her to discover new places and Pokemon in the Alola region. It's really interesting as it gives a different perspective on Lillie's character. Another great one is 'Protecting Lillie'. This fanfic focuses on how the protagonist in the story protects Lillie from various threats she faces during her travels. And then there's 'Lillie's Friendship Circle' which is all about Lillie making new friends and how those friendships shape her journey.
One great Pokemon Sun and Moon Lillie fanfiction could be 'Lillie's Journey of Discovery'. It delves into Lillie's growth and her relationship with the Pokemon in a really engaging way. Another one might be 'Lillie and the Secret of Alola', which often has interesting plot twists involving Lillie's past. There are also fanfictions that focus on Lillie's friendship with the protagonist, like 'Lillie and My Adventure in Alola' which shows how they support each other through their adventures in the Alola region.
One common theme is growth. Lillie often starts as a somewhat timid character and grows into a strong and confident trainer. Another theme is friendship, mainly her relationships with her Pokemon. For example, in many fanfictions, she forms a deep bond with her first Pokemon. Also, the exploration of the Alola region is a theme. Writers like to describe the unique landscapes and cultures of Alola that Lillie experiences during her journey.
I'm not sure about a specific one off the top of my head, but you can check out fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Lillie Pokemon Sun and Moon' and you'll likely find a bunch of options. Look for ones with high ratings and a lot of reviews.
Growth is a common theme. Lillie often starts as a somewhat timid character and grows into a more confident and capable person. Another theme is friendship. She forms strong bonds with other characters and Pokemon. Adventure is also there, as she goes on various quests and travels in the Alola region.
You can find Pokemon Sun and Moon Lillie fanfictions on fanfiction websites like FanFiction.net. There are numerous stories there written by fans from all over the world. Another good place is Archive of Our Own (AO3). It has a wide selection of fanfictions, including those related to Lillie from Pokemon Sun and Moon.
One popular Pokemon Lillie x Sun fanfiction might be 'A Journey Together'. It often focuses on their adventures across the Alola region, with a lot of character development for both Lillie and Sun. They face various challenges and their relationship deepens as they help each other out.
One possible fanfiction could be about Sun and Lillie going on an adventure together in the Alola region. They might discover a new and rare Pokemon that only appears during a certain lunar phase. Sun could use his skills as a trainer to protect Lillie from any potential danger, and in the process, their relationship could grow deeper.
In some fanfictions, Lillie is often portrayed as a more delicate and reserved character. Moon, on the other hand, is seen as the bolder one. For example, when they enter a new area full of unknown Pokemon, Moon might be the first to approach and try to interact, while Lillie hangs back a bit.
One popular Pokemon Lillie and Moon fanfiction could be about their adventures in the Alola region beyond what's shown in the games. They might encounter a new and rare Pokemon species and have to work together to protect it.