Since it's about space merchants, there might be a shrewd businessperson who is always looking for the next big deal in space. There could also be a character who is more interested in the ethical side of trading in space, like making sure the native alien species are not exploited. And maybe there's a character who is an inventor, creating new technologies for space trade.
I'm not sure specifically as I haven't read it. But they could be space merchants, perhaps an experienced trader and a novice just starting out in the space business.
It could be about various things. Maybe it's about merchants in space and the fictional adventures they have, like trading rare items across different planets or dealing with alien species in a business context.
Rachel is surely a main character in this story. As for the rug merchants, they are also key. There might be an older, more experienced rug merchant who acts as a sort of mentor to Rachel, teaching her about rugs. And there could be a young, ambitious rug merchant who has different ideas from the traditional ones, and Rachel gets caught in the middle of their different approaches.
I don't know as there's not enough information provided about 'tijan fantastic fiction' to determine the main characters.
Not having read Archer Fantastic Fiction, it's all speculation. It could have a diverse set of main characters. Maybe there's an Archer who is a reluctant hero, and there are other characters such as a strong - willed female character who challenges the Archer's ideas and helps him grow, and a mischievous creature that provides some comic relief during their journey through the fictional landscapes.
Without actually reading Kellerman Fantastic Fiction, it's difficult to determine the main characters. However, in general for a work of fantasy fiction, we could expect to find characters like brave knights or sorcerers if it has a medieval - like setting. If it's a more modern - day fantasy, it could be regular people who discover they have special powers. Or it could have alien - like creatures as main characters if the setting is in a far - flung galaxy. But again, this is all speculation without more information about Kellerman Fantastic Fiction.
Ciri, the princess of Cintra, is another main character. She has her own destiny and is connected to Geralt in many ways. Her journey and growth are important aspects of the overall narrative in 'witcher fantastic fiction'.
In Pratchett Fantastic Fiction, one of the main characters is Death. He is not your typical Grim Reaper. He is curious about humans and has his own sense of humor. Then there is Tiffany Aching, a young girl who discovers her power as a witch and has to deal with various threats to her world. These characters, among others, bring the fantastical worlds to life with their distinct personalities and story arcs.
Since I don't know the exact work of 'skyfarer fantastic fiction', it's hard to say. But they could be skyfarers themselves, brave adventurers who take to the skies.
It depends on which work of Adams' you are referring to. In some of his stories, there might be a young hero who is on a quest to discover a hidden truth or power.
The Witch in "Hansel and Gretel" is also an interesting merchant in a way. She lures the children to her gingerbread house with the promise of food and shelter, which is like a false trade offer. She wants to use the children for her own dark purposes. It shows a different and rather dark side of what a merchant in a fairy - tale can be.