It could start with Bilbo having a strange dream where he sees a cat that seems to be more than just an ordinary animal. The cat has an otherworldly glow andBilbo feels a strong connection to it even in the dream.
Another way it could start is with a mysterious figure, maybe a wizard or an elf, approaching Bilbo and telling him that a cat spirit animal has been chosen for him. Bilbo is initially skeptical but then starts to notice signs around him, like seeing cat - like shadows or hearing faint meows in the wind, that lead him to believe that this spirit animal is real and about to enter his life.
Maybe the cat spirit animal has the ability to communicate with Bilbo in his dreams. It imparts wisdom about the journey ahead, like which paths to take and which treasures are truly worth seeking. The cat could be a connection to an ancient magic in Middle - earth that only Bilbo, as a hobbit with a special bond to this spirit animal, can access.
One possible theme could be adventure. Just as Bilbo had grand adventures in Middle - earth, the cat familiar could accompany him, adding an interesting dynamic to the journey.
You can try searching on fanfic websites like Archive of Our Own (AO3). It has a large collection of fan - created stories, and there might be some 'bilbo baggins cat fanfic' there. Just use the search bar and type in the relevant keywords.
One popular 'bilbo baggins cat fanfic' might be the one where Bilbo discovers a magical cat in Middle - earth. The cat has the ability to communicate with him and they go on adventures together, exploring hidden caves and encountering strange creatures.
I'm not sure of a specific 'bilbo baggins cat familiar fanfic' off the top of my head. But you could try searching on fanfiction platforms like Archive of Our Own. There might be some creative stories there that combine Bilbo Baggins and a cat familiar in interesting ways.
If Bilbo goes back in time to when he first met the dwarves, his relationship with them would be quite different. He would already know them well, and they might be more suspicious of his prior knowledge. But he could also use this to his advantage and form even stronger bonds with them more quickly, as he would understand their personalities better from the start.
One possible theme could be a sense of betrayal. For example, if Bilbo feels betrayed by his companions during the adventure, it could lead to his anger. This could be related to issues like sharing of the treasure or decisions made during their journey.
Common themes in 'female Bilbo Baggins fanfic' include empowerment. A female Bilbo can be shown as breaking barriers in a world full of challenges. Also, there is often the theme of adaptation. How does she adapt to the quest and the company of dwarves? It's not just about being female, but also about how that changes the story's flow. There might be fics where she has to prove herself more because of her gender, which is an interesting take on the classic story.
The appeal of bamf Bilbo Baggins fanfic lies in the transformation of his character. In the original, Bilbo is a rather meek hobbit at first. But in these fanfics, he becomes this strong, badass character. It's exciting to see him take charge and use his wits and new - found strength in different situations.
I'm not sure of a specific 'angry bilbo baggins fanfic' off the top of my head. But you can try looking on fanfic websites like Archive of Our Own. There might be some stories there that explore an angry Bilbo Baggins in various scenarios, such as during his adventures when he's faced with difficult challenges or when he has disputes with other characters in Middle - earth.