Obviously, Peter Parker is a common character as he is the central figure in the Spiderman universe. Mary Jane Watson is often included in the harem as she has a long - standing relationship with Peter in the original comics. Gwen Stacy might also be part of it, given her importance in Peter's life.
MJ (Mary Jane) would be a likely character in the harem. She has a long - standing relationship with Spider - Man. Gwen Stacy could also be part of it. And then there might be characters like Felicia Hardy (Black Cat) who has her own complex relationship with Spider - Man. In some fanfictions, other female superheroes from the Marvel universe like Elektra might also make an appearance in the harem.
Spiderman is the key, of course. In addition to the well - known female characters from the Spider - Man universe, there might be other characters from the Marvel world who cross paths with him and end up in the harem. For instance, Black Cat could be a likely candidate. She has that alluring and mysterious personality that would fit well in this kind of scenario. Also, characters from different dimensions or alternate universes could be brought in, adding an element of the unexpected to the harem and the overall story.
One common theme is the clash of universes. Since Spider - Man is from Marvel and DC characters are from a different universe, there's often exploration of how their different powers and personalities interact in a harem setting.
Besides the main female characters from the original series, some fanfictions also include Tenten. She brings her weapon - master skills and a no - nonsense attitude to the harem. Another character that might show up is Temari. Her strong - willed and independent nature from the Sand Village can create interesting interactions within the harem. And then there's also Anko Mitarashi, who has her own unique charm and can be a wild card in the Naruto harem fanfiction.
Well, of course, Godzilla himself is the central character. And often, there are other kaiju like Mothra who could be part of the harem. She has a long - standing relationship with Godzilla in the Godzilla lore and can be a likely candidate in the harem fanfiction.
Other characters like Kakashi or Jiraiya could potentially be part of the harem in some fanfictions. Their unique personalities would bring different elements to the story. Kakashi's cool and mysterious nature or Jiraiya's more carefree and perceptive self could interact with Kushina and the rest of the harem in various ways.
Doctor Strange often appears in Spiderman dimension travel fanfiction. Since he is an expert in the mystic arts and has knowledge about different dimensions, he can be a guide or an accidental cause of Spiderman's dimension travel. Another common character is Venom. In different dimensions, Venom can have different forms and motives, which makes for an interesting story when combined with Spiderman's dimension - hopping adventures.
Power dynamics is also a common theme. Spiderman has his own set of powers, and the X - Men each have their unique abilities. In these fanfictions, they often have to figure out how to work together, especially in a harem situation. For instance, they might face a villain who can nullify some of their powers, and they need to rely on each other's strengths. There are also themes of loyalty and friendship that develop as they face various challenges together.
Master Chief is often a central figure around which a harem might form. His stoic and heroic nature makes him an attractive character for this kind of fanfiction. Cortana could also be part of the harem, as she has a deep connection with Master Chief. And Arbiter might be included in some cases as he represents an important alien species in the Halo universe and his character has depth and complexity.
Sakura could be one of the common characters in the harem. Since she has a long - standing relationship with Naruto, she might be part of the harem in some fanfictions. Hinata is also a possibility as she has deep feelings for Naruto. Another character could be Ino, who might be added to the harem for the sake of the complex relationship dynamics among the female characters.