Well, often the main character from the original Grimm's stories are popular. For instance, Little Red Riding Hood. In fanfiction, she can be portrayed as a more cunning player in the game, using her wits to survive the Grimm Consequence.
One idea could be exploring a new character who enters the game and has a unique ability that changes the dynamics. For example, a character with the power to manipulate time within the game world. This could lead to interesting twists as they try to outwit the rules of the Grimm Consequence.
Ruby is often a popular character. In RWBY Grimm Gamer fanfiction, she might be portrayed as having an enhanced ability to sense Grimm in the game world. Her speed could also be amped up in a way that makes her especially effective at taking on fast - moving Grimm. For example, she could be the first to reach a new area filled with dangerous Grimm and start clearing them out before the other players arrive.
Yang Xiao Long is a fan - favorite in RWBY Gamer Grimm fanfiction. Her strength and her semblance can be really interesting when combined with the gamer - style storylines. In many of these fanfictions, she might be the one who takes on the tougher Grimm head - on, like a boss - fighter in a game. Additionally, characters like Ozpin can also be important as he might hold the knowledge about the 'gamer' - related mysteries within the RWBY world and the Grimm, guiding the younger characters.
Sabrina and Daphne are really popular. Sabrina with her more headstrong and cynical nature often makes for great conflict and growth in stories. Daphne, being the more optimistic and naive one, can also drive interesting plots. Puck is another fan favorite. His mischievous nature and powerful fairy abilities can add a lot of fun and chaos to a fanfiction.
Ruby Rose is often a popular character in these fanfictions. Her silver eyes and powerful scythe skills can be combined in interesting ways when considering her as a potential Grimm hybrid. Maybe she could have some Grimm - like abilities that enhance her combat capabilities.
Well, Harry is the central figure, but characters like the little fairy - like Grimm that helps Harry find his way in the dark parts of the Grimm world are quite popular. Also, the big, strong bear - like Grimm who serves as a protector in some stories is a fan favorite. These characters add depth and variety to the fanfic stories.
Arya Stark could be a great character to include. Her skills in combat and her ability to adapt could be interesting when combined with the world of dragons. For example, she could learn to ride a dragon and use her assassin skills to protect it.
Mysterious characters are ideal for 'game of shadows' fanfiction. They can be used to build suspense and keep the readers guessing about their true nature and their role in the game.
Arya Stark is frequently genderbent in fanfiction. As a boy, her story could take on new twists and turns, especially in relation to her training and revenge. Tyrion Lannister can be an interesting genderbend as well. A female Tyrion would face unique challenges in a world that doesn't value women as highly in terms of intelligence and leadership. And then there's Brienne of Tarth. Genderbending her to a male can show how different her journey would be in terms of acceptance and the perception of chivalry.
Arya Stark is a popular choice. Her journey from a young girl to a skilled assassin is full of potential for further exploration. You can write about her new adventures, her relationships, or how she uses her skills in different situations.