You might want to check out 'The Deceptive Mask'. In this novel, multiple characters lie about who they are for different reasons, like seeking revenge or escaping a troubled past. These lies drive the story forward and keep the readers on the edge of their seats.
One such novel could be 'The Great Gatsby' where Jay Gatsby creates a false identity to fit into high society.
I'm not sure specifically who the main characters are in 'the good lie story' without more context. But generally, in a story about a good lie, you might expect to find a character who tells the lie, perhaps a protagonist who is trying to protect someone or achieve a noble goal. There could also be a character who is the recipient of the lie, someone who is being shielded from a difficult truth.
I'm not sure specifically as it depends on the particular fanfiction. But it could be a couple, like a male and a female lead who are in a complex relationship where love and lies are intertwined.
Since I'm not familiar with this specific novel, it's difficult to name the main characters. However, it's likely to have a central character who has the ability to listen for lies. There could also be a supporting character who helps this main character in their journey, perhaps a friend or a mentor. And of course, there would probably be antagonists who are trying to deceive the main character and avoid having their lies exposed.
I don't know as I haven't read it. It could be a variety of characters like a young hero trying to do the right thing, or an older mentor figure who guides others in their decision to tell good lies.
There could be a character who is a master of deception, always creating these beautiful lies. And there might be another character who is very naive and easily believes those lies. Their interactions would drive the story forward.
In the 'lie with me novel', there could be a young woman as one of the main characters. She might be a complex character, perhaps with a troubled past that makes her prone to lying. And then there could be a male character who gets involved with her, either romantically or in some other significant way. Their interactions could be the focus of the story, with other secondary characters adding more depth and context to the plot.
Typically in 'the little lie story', there would be the liar, who could be a child or an adult. There might also be a person close to the liar, such as a parent or a sibling. For example, if it's a story about a child lying to their parents about where they were after school, the child is the main liar and the parents are the ones affected by the lie.
Since the novel is called 'Good Girls Lie', the main characters might be young women or girls. They could be students in a school setting. Maybe there is a lead girl who is the most prominent in the web of lies. There could also be her friends or classmates who are either involved in the lies with her or are affected by her lying. There might be a strict teacher or an overbearing parent figure who unknowingly contribute to the reasons why the girls feel the need to lie.
I'm not sure specifically as I haven't read the novel. But generally, the main characters would likely be the ones involved in the relationship where the lying is taking place.