Alanna and George are the core. But a mysterious wizard could be included. The wizard could be a bit of an obstacle at first, perhaps casting a spell that causes some misunderstandings between Alanna and George. This would create tension and drama in the story. And then there could be a young apprentice who is trying to learn from the wizard but also befriends Alanna and George. The apprentice can help to resolve the misunderstandings in the end, leading to Alanna and George's first time together.
Maybe in a world where there's a big festival coming up. Alanna is tasked with helping to organize it, and George offers his assistance. As they prepare for the festival, they get to know each other on a deeper level. There are small moments of jealousy when other people show interest in Alanna or George. But in the end, during the festival when the fireworks are going off, they hold hands for the first time and realize that there's something special between them.
Well, Hermione Granger would be a great character to put in an 'alanna the lioness crossover fanfic'. Hermione is extremely intelligent and well - versed in magic, and she could exchange knowledge with Alanna. Then there's Buffy the Vampire Slayer. Alanna, with her combat skills, and Buffy, with her vampire - slaying expertise, could team up to fight supernatural threats that are common to both their worlds. And don't forget about Legolas from 'The Lord of the Rings'. His archery skills and elven magic could complement Alanna's own abilities in a crossover story.
Obviously, Edward and Bella are must - includes. They are at the center of the first kiss. But adding other Cullens like Alice can be interesting. Alice could have premonitions about the kiss and her reactions or attempts to influence the situation can add depth. Also, Jacob could be included. His unrequited love for Bella can create some great tension. He could show up at an inopportune moment just as Edward and Bella are about to kiss, leading to a very tense scene.
Definitely Prince Gumball. His relationship with Fionna can add a lot of drama and interesting storylines. Also, Ice King. He can be both a comical and menacing presence. And of course, Marshall Lee. He has his own unique charm and his interactions with Fionna are always exciting.
Sonic himself is a must - include. His speed and adventurous spirit drive the story forward. Tails is also great as he can provide technical support and is Sonic's loyal friend. And Dr. Eggman, as the main antagonist, always adds conflict and excitement to the story.
Vegeta is a great choice. His rivalry with Goku adds a lot of drama and action to a fanfic. Also, Piccolo, as he has a long history with Goku and has been both an enemy and a friend. Another good character could be Gohan, Goku's son, as it can explore their father - son relationship further in the fanfic.
Another good character to include is Lex Luthor. He could be the mastermind behind a plot to drive a wedge between Batman and Wonder Woman. His devious mind and resources would make him a formidable antagonist, and his interactions with the two heroes would add a lot of drama to the story.
Optimus Prime is a great choice. His leadership and wisdom can add depth to the story, and his relationship with Bumblebee can be explored further. Also, Sam Witwicky, as he has a strong bond with Bumblebee in the movies. Their friendship can be a central part of the fanfic.
Definitely Naruto himself, as he is the main character of the original series. Sasuke is also a great choice as his complex relationship with Naruto can add a lot of drama. Kakashi is another good character to include. His wisdom and unique abilities can be very useful in the story. And Sakura, her growth as a ninja can be explored further in a fanfic.
Well, obviously Armikasa themselves are the main focus. But you could also include their friends. For example, their comrades who are with them in training or on missions. These characters can add more depth to the story by providing different perspectives and interactions.