What could be an interesting plot for a Hazbin Hotel and Doom crossover fanfiction?

One possible plot could be that the Doom Slayer somehow ends up in the Hazbin Hotel universe. He might initially be seen as a threat due to his violent nature. But then, they realize he could be an asset in dealing with some of the more dangerous demons in the Hazbin Hotel world. For example, he could help Charlie and her crew deal with some of the more unruly and powerful demons that are causing trouble in and around the hotel.

One possible plot could be that the Doom Slayer somehow gets teleported to the Hazbin Hotel universe. He then has to deal with the demons there, which are different from the ones he usually fights. The hotel staff might initially be afraid of him, but then realize he could be an asset in dealing with more malevolent demons.

The Doom Slayer and Charlie would be an interesting pair. Charlie is all about redemption and trying to make Hell a better place, while the Doom Slayer is focused on pure destruction of demons. Their meeting could lead to some great character development. Charlie might try to convince the Doom Slayer that not all demons are irredeemable, while the Doom Slayer could show Charlie the true horror that some demons are capable of.

Another option is a crossover with Gravity Falls. Dipper and Mabel could end up in Hell for some wild reason, like following a strange portal. They'd meet the Hazbin Hotel crew and chaos would ensue. Dipper would be all about trying to figure out the logic and secrets of this new place, while Mabel would probably befriend some of the more outlandish demons or sinners. Charlie would see the Pines twins as a chance to prove that redemption is possible even for those from other dimensions.

One possible plot could be that some of the Hogwarts students accidentally end up in Hell (the setting of Hazbin Hotel). They could encounter the characters from Hazbin Hotel and have to find a way to get back. Maybe they initially think it's a part of some new magical realm or a powerful dark wizard's creation. For example, Harry Potter, Hermione, and Ron could meet Charlie and learn about her plan to rehabilitate sinners. The Hogwarts students might be skeptical at first but then start to see some similarities between the way magic is used in Hell and at Hogwarts.

Well, perhaps in this fanfiction, the characters from Hazbin Hotel end up in the Naruto world. Charlie could see the problems of the shinobi world, like the discrimination against the jinchuriki, and try to bring her ideas of redemption to the place. Meanwhile, Naruto could befriend the Hazbin characters and learn about their unique powers and backstories, leading to a cross - universe adventure.

Another interesting interaction could be between Vaggie and the Doomguy. Vaggie is protective of Charlie and the hotel's mission. When she meets Doomguy, she might be suspicious of his motives. She could be constantly on guard around him, and he might be a bit annoyed by her over - protectiveness. Their relationship could start off as very tense but could develop in interesting ways as they get to know each other better.

One interesting concept could be crossovers with other popular animated shows. For example, a crossover with 'Steven Universe' might bring unique character interactions. The different power sets and personalities from both universes could create engaging storylines. Another concept could be a crossover with a classic fairy - tale world. The demons from Hazbin Hotel interacting with fairytale characters would be quite a sight, like the sinners trying to corrupt the pure - hearted fairytale folks or vice versa.

There are a few out there. However, the quality can vary a great deal. Some fanfictions might be more action - oriented, with the Doom Slayer getting involved in the chaotic world of Hazbin Hotel, perhaps fighting against some of the demons there in his own brutal style. Others could be more about character relationships and how the two very different characters from different franchises would get along or clash.

A possible plot could involve Lucifer dealing with the physical and emotional changes that come with pregnancy. This might include her struggling to maintain her usual image of power while also experiencing the more vulnerable aspects of carrying a child. Additionally, it could explore how her relationship with other important characters, like Charlie, is affected as she goes through this new phase.