There could be a fanfiction where Beerus has to team up with Goku and Vegeta in a completely different universe. They face new enemies and Beerus has to adapt his powers in a strange new setting. This would be really exciting as it combines different elements of the Dragon Ball universe.
A Beerus fanfiction might also focus on his relationship with Whis. For example, a story could tell about a time when Whis was unable to assist Beerus for some reason, and Beerus had to rely on his own wits and power to overcome a difficult situation. It could show a different side of Beerus, perhaps more vulnerable yet still powerful.
One interesting Beerus fanfiction could be about his origin before he became a Destroyer. It might explore his training and the events that led him to such a powerful position.
A different take on a Naruto - Beerus fanfiction could be a story where Beerus decides to train Naruto. Beerus is an extremely powerful being, and his training methods would be very different from what Naruto is used to in the Hidden Leaf. This training could unlock new levels of power for Naruto, and also lead to some humorous moments as Naruto tries to adapt to Beerus' strange ways.
One idea could be a crossover with the Marvel Universe. Beerus could visit Asgard and have an encounter with Thor. Maybe they have a friendly competition over who is stronger in terms of combat skills or who can handle more powerful magical items. Another could be a crossover with the Harry Potter world. Beerus might be intrigued by the magic there and get involved in a battle against Voldemort, using his godly powers in a completely different magical setting.
Another interesting concept is a crossover with the Star Wars universe. Beerus could find himself in the middle of the conflict between the Jedi and the Sith. His neutral stance in the beginning could change as he discovers the true nature of the Force. Maybe he decides to side with one group or tries to end the conflict in his own unique way, which would be a fascinating exploration of both universes.
One idea could be a story where Beerus and Kaioshin have to team up to face a new and powerful enemy that threatens their universe. They start off with their differences but gradually learn to work together and respect each other's powers.
One interesting concept could be the power struggle. Beerus is an extremely powerful deity in the Dragon Ball universe with god - like powers, while Naruto has his own set of formidable ninja abilities. In fanfiction, they might explore how Naruto's chakra and jutsu would fare against Beerus' energy blasts and hakai ability. Another concept could be the clash of their worlds. The ninja world of Naruto is very different from the Dragon Ball universe, so seeing how the two settings interact, like how Naruto's friends and village would react to Beerus' presence, can be really engaging.
I'm not sure of specific 'Beerus and pregnant' fanfiction stories. However, you could try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net. They have a wide range of fan - created stories and you might find something related to Beerus in that context.
Another storyline could involve an OC who is a young warrior with a pure heart. Beerus, despite his usually aloof nature, sees the potential in this OC and decides to train them a bit. As they train together, a bond of friendship forms. The OC could also introduce Beerus to new concepts and ways of thinking that are different from what he's used to in his godly existence.
One interesting plot twist could be that Goku and Beerus end up teaming up instead of fighting. Maybe they discover a common enemy that is even more powerful than them. Another could be that Beerus loses his power temporarily and Goku has to protect him from other villains while also trying to figure out how to return Beerus' power.
Also, their role in the Dragon Ball universe's power structure is fascinating. Beerus is a powerful destroyer, and Whis' abilities seem almost otherworldly. Fanfiction can explore how they interact with other characters like Goku and Vegeta, and how their presence affects the overall balance of power in different storylines.
One idea could be that Beerus is intrigued by Bulma's intelligence and her ability to create amazing inventions. He might start visiting her more often, causing some comical misunderstandings among the Z - fighters. For example, Vegeta could get jealous of their interactions.