One more theme could be the struggle against the norms of their society. In some fanfictions, the alpha - omega dynamic might be strictly defined by society. Magnus and Alec could be fighting against these norms, whether it's about how omegas are supposed to behave or who alphas can be with. This theme allows for some interesting plot developments as they try to carve out their own path together.
The popularity might be due to the dynamic between the two characters. The alpha - omega relationship often brings an interesting power dynamic and a lot of room for romantic and dramatic storylines.
In yaoi fanfiction, the alpha magnus x omega alec relationship often has a power dynamic. The alpha, Magnus, is typically seen as more dominant in some aspects, like being more assertive or having more control. Alec, as the omega, might be portrayed as more submissive, but not always in a weak way. He can still be strong - willed.
Well, you can try looking on some popular fanfiction websites like Archive of Our Own. There are often a lot of works in this pairing category there.
I've heard that some fanfiction platforms like FanFiction.net may also have alpha magnus x omega alec stories. However, the quality can vary widely. It's important to read the reviews and summaries before diving in. A popular trope in these stories could be the protectiveness of Magnus (the alpha) towards Alec (the omega), which makes for some really engaging reads.
A major theme in magnus x alec fanfiction is the exploration of power dynamics. Magnus is a powerful warlock and Alec is a shadowhunter. How they balance their different levels of power and influence in their relationship is often explored. Also, the theme of acceptance is quite prevalent. They come from different worlds, and their journey towards accepting each other's differences is a key part of many stories. For example, in some fanfictions, Alec has to come to terms with Magnus's long life and his different magical practices.
Well, in Magnus x Alec lemon fanfiction, a frequent theme is the discovery of each other's desires. Since they come from different backgrounds, Magnus being a warlock and Alec a Shadowhunter, there's a lot of room for exploring how they understand and fulfill each other's needs. Additionally, themes of acceptance, both within themselves and from their respective communities, are quite common. The 'lemon' aspect can sometimes be used to show the deepening of their bond and the breaking of barriers between them.
One common theme is love and relationship development. It shows how Magnus and Alec's relationship grows and overcomes various obstacles. Another theme could be adventure, where they go on quests together while being in a relationship.
Another theme is the struggle against prejudice. Since they are from different 'worlds' in the story, they face a lot of judgment from others, and fanfictions often deal with how they overcome this. Also, the theme of self - discovery is quite common. Both characters grow and learn more about themselves through their relationship with each other.
Love is a very common theme. Their love story, how they overcame differences to be together. Another is the theme of acceptance, like Alec accepting Magnus' warlock nature and Magnus accepting Alec's Shadowhunter duties. And also the theme of family, as they both have different family backgrounds and how they merge their families in a way.
A frequent theme is also the power dynamics. Magnus has his powerful magic, and Alec has his position in the shadowhunter world. How they balance this in their relationship is often explored. Also, the theme of family acceptance is common. Alec's family and their reactions to his relationship with Magnus are often part of the stories.