Friendship and loyalty are also likely themes. Harry is known for his strong sense of loyalty, and his relationship with Fawkes in these fanfics could be based on mutual loyalty. Fawkes has shown his loyalty to Dumbledore in the original series, and in the fanfics, this loyalty could extend to Harry. Their friendship could be a driving force in the stories, with Fawkes being there for Harry when others might not be, and vice versa.
Another theme could be magic and mystery. Fawkes is a magical creature, and in these fanfics, the exploration of his magic and how it interacts with Harry's own powers can be a central theme. Maybe Fawkes has some special abilities that help Harry in his fight against the dark forces. Also, the mystery of Fawkes' origin and his connection to the wizarding world at large can add an interesting layer to the stories.
One common theme is friendship. Fawkes could be seen as a very special friend to Harry. Another might be magic. Since Fawkes has unique phoenix magic, it could be explored in relation to Harry's own magic.
The themes usually include the concept of unity. Harry and Fawkes being mates implies a unity of purpose. They might be on a quest to save the wizarding world together. Another theme is the discovery of hidden powers. Harry might discover new powers through his connection to Fawkes. And of course, there's the theme of friendship. Their relationship is based on a deep friendship that endures through many challenges in the fanfictions.
I don't know the exact common themes as I'm not familiar with 'tom fawkes gay fanfic' specifically. But in general, gay fanfics often explore themes like love, acceptance, and the challenges of same - sex relationships.
The plot might involve the fem character being in danger and Fawkes coming to her rescue. Since Fawkes has the power of rebirth, he could sacrifice himself to save her in some way, and then be reborn in a more powerful form. This could then set off a chain of events where she has to figure out how to use Fawkes' new powers to fight against an emerging dark force.
Romance is likely a very common theme. Writers might explore how Harry and Lisa could fall in love, perhaps over coming cultural or world - view differences. They could start off as strangers and gradually develop feelings for each other through shared experiences in a new, made - up world.
Another theme is self - discovery. Harry and Cho are both at an age where they're still figuring out who they are. Fanfics often explore how their relationship helps them in this journey, like Harry becoming more in touch with his emotions through his interactions with Cho.
Another theme is self - discovery. The characters of Harry and Louis are often on a journey of self - discovery in relation to their feelings for each other. In some fanfics, they have to figure out who they are and what they really want in terms of their relationship.
One common theme is the exploration of family bonds. Since James is Harry's father, many fanfics focus on how they could have interacted if James had been alive. Another theme is the passing on of knowledge or skills from father to son.
One common theme is friendship. Since both Luna and Harry are unique characters in the Harry Potter universe, their friendship is often explored in fanfics. Another theme is the discovery of hidden magic. Luna's penchant for the strange and unknown often leads them to find new magical things together.
Rebellion against the status quo can also be a theme. Sirius is a bit of a rebel, and he encourages Harry to question things. So in many fanfics, they might be involved in actions that go against the traditional rules of the wizarding society. And of course, the theme of friendship - a deep, unbreakable friendship that could be seen as more than just friendship in some interpretations.