One common theme is mystery - solving. Both shows have elements of mystery, so in fanfiction, it's likely that they'll combine forces to figure out strange happenings. Another theme is friendship. The characters from both shows form new friendships and learn to work together.
Well, mystery is a big one. The fanfictions often revolve around a spooky mystery that needs to be solved, whether it's a haunted place or a strange creature. Also, the theme of the supernatural is common. Danny's ghost - related abilities and the various ghosts in his world blend well with the spooky elements in Scooby Doo. And of course, there's the theme of cooperation. The two groups have to learn to cooperate despite their differences in abilities and personalities. For example, Danny might be impatient with Scooby and Shaggy's cowardly antics at first, but they all come to respect each other in the end. It's also about the discovery of new worlds. Danny's world of the Ghost Zone and Scooby Doo's more earthly spooky locations can be combined in interesting ways, like portals opening between the two realms.
One common theme is mystery. Just like in the original Scooby Doo series, the gang has to solve the mystery of the phantom virus. Another theme is friendship. They rely on each other to get through the challenges posed by the virus.
Sure. In some fanfiction, they could be in a competition of sorts. Maybe there's a contest to see who can solve the most mysteries in a given time. This would lead to a lot of fun interactions as they both try to outdo each other while also learning from one another. Danny's more action - based approach might clash with Scooby Doo's gang's more methodical detective work at first, but then they find a way to work together.
One common theme is the clash of different worlds. The Scooby Doo gang is used to more 'family - friendly' mysteries, while Supernatural deals with darker and more dangerous supernatural elements. So when they cross over, there's often a theme of the Scooby gang having to adapt to this new level of danger.
One common theme could be how the other characters react to Daphne's pregnancy. Another might be the challenges she faces during the pregnancy while still being part of the mystery - solving gang.
One common theme is the rescue mission. The gang comes together to save Daphne from the kidnapper. Another theme could be mystery. Figuring out who the kidnapper is and why they took Daphne.
One common theme is friendship. The male oc often forms strong bonds with the existing Scooby Doo gang members. Another theme is mystery - solving. Just like in the original show, the male oc is usually involved in unravelling spooky mysteries.
One common theme is the power struggle. Ember has her own set of powers and often tries to overpower Danny, either for her own gain or just for the fun of it. So there's a constant back - and - forth in terms of who's in control.
One common theme is the struggle between good and evil within Danny. It often shows how his normal self battles his evil side. Another theme is the impact on his relationships. His friends and family have to deal with this new, dangerous Danny.
Love and friendship are common themes. Their relationship, whether it's a budding romance or a deep platonic bond, is often explored.
One common theme is family. Since they are siblings, a lot of fanfics explore their family bond, like how they rely on each other and protect one another. Another theme is secrecy. Danny has to keep his ghost identity a secret, and Jazz often gets involved in that secrecy, either by helping him keep it or by accidentally finding out. Growth is also a theme. As the story progresses, both Danny and Jazz grow as characters, both in their personal lives and in dealing with the supernatural elements around them.