Another theme is redemption. Sometimes Alucard is written as seeking some form of redemption through his interactions with Anderson, or vice versa. Their relationship can be a catalyst for change in each other's characters. There are also fanfictions that focus on the power struggle between them. They are both extremely powerful in their own ways, and seeing who is more dominant in different situations is an interesting theme that many fanfictions explore.
One more theme could be the exploration of their similarities beneath their differences. Despite their opposing natures, they both have a strong sense of justice (albeit in different forms). Fanfictions may delve into how they come to recognize these similarities and how it affects their relationship. Also, the theme of sacrifice can be present. In the face of a greater threat, either Anderson or Alucard might be written as sacrificing themselves for the other, which adds a layer of complexity to their relationship.
A common theme is the battle of ideologies. Anderson, being a devout Catholic and Alucard, a vampire, they have very different outlooks on life and death. Fanfictions often explore how these clashing beliefs interact when they face each other.
For Alucard, his determination is a great trait. No matter how difficult the situation, he never gives up. In fanfiction, this can lead to some really intense showdowns. Anderson, on the other hand, has his unwavering faith. It gives him strength and makes him a formidable opponent.
A prevalent theme in 'alucard x oc fanfiction' is the struggle between good and evil within Alucard. The OC usually plays a role in this internal battle. Additionally, themes of loyalty and betrayal can be found. The OC may have to prove their loyalty to Alucard, and there could be elements of betrayal from other characters in the story. Also, the exploration of immortality is common, as Alucard is immortal and the OC might be mortal, leading to complex emotional and plot developments.
One common theme is the supernatural. Since Alucard is a supernatural being, the fanfictions often involve elements like vampires, magic, and the occult. For example, the reader might be a human who gets involved in Alucard's world of the supernatural.
A common theme is the power dynamic. Alucard is often portrayed as very powerful, and Alexander might be more of a strategist. So, how they balance their strengths is a big theme. For example, in many stories, Alexander's plans are carried out with Alucard's brute force. Another theme is redemption. Maybe one of them has a dark past, and the other helps them find a new path.
One common theme is the exploration of their different personalities coming together. Rachel is often depicted as mysterious and powerful, while Ragna is more hot - headed. Their relationship dynamic is a big draw.
Identity is a big theme as well. The OC may have their own set of values and beliefs that are tested in the Hellsing world. They might question their own identity as they interact more closely with Alucard and the other characters. Also, themes of loyalty and betrayal can play out, especially when the OC has to choose between different factions or loyalties within the Hellsing universe.
A common theme is the power dynamic between them. Alucard is extremely powerful, but Integra is his master. Fanfictions often play with this dynamic, showing how they navigate it. Another theme is loyalty. Alucard's loyalty to Integra is a key element, and it's explored in different scenarios in fanfiction.
You can try looking on some popular fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you might be able to find Alucard x Anderson Yaoi fanfics there. Just use the search function and type in the relevant tags.
Alucard could start to see Anderson not just as an enemy but as a worthy adversary with a sense of honor. This might make him less bloodthirsty towards Anderson specifically. For Anderson, he might come to understand that Alucard is not just a mindless monster but has his own reasons and a complex past.
One great place to find Anderson x Alucard fanfiction is Archive of Our Own (AO3). There are many stories there with different themes and plotlines. Some might focus on their intense battles and how that could lead to an unexpected understanding between them. Others could explore a more complex relationship where they have to team up against a common enemy and in the process, develop a grudging respect for each other.