There could be a young detective - in - training. He's trying to solve the case of the burglars on his own but teams up with the home - alone kid. He brings his detective skills like fingerprint analysis and code - breaking, while the kid has the knowledge of the house layout and his creative trap - making abilities.
Maybe a mysterious old hermit who lives in the woods near the kid's house. He has a lot of knowledge about the area and gives the kid advice on how to use the natural elements around his home, like using tree branches and rocks, to build even more effective traps.
A friendly street artist. This person could be really good at creating life - like sculptures out of trash. Kevin could meet this artist and they could work together to create some really cool and big distractions for the burglars. For example, making a fake police officer out of cardboard and trash to scare the burglars away.
Perhaps in this fanfiction, Kevin discovers a magical ability while being alone in New York. He can communicate with the pigeons, and they become his allies. The '967' could be some sort of frequency or signal that only he and the pigeons can understand, which helps him in his new adventure against the bad guys.
It could be a single mother and her young child. The mother is trying to start a new life for them in the new home, facing difficulties like finding a good school for the child and making enough money to pay the bills. The child, on the other hand, is excited about the new place and makes friends easily in the neighborhood, which in turn helps the mother to feel more at home.
The main characters are Percy and Annabeth. Percy is a demigod, the son of Poseidon, with powers over water. He's brave and has been on many dangerous quests.
It could be a rogue wizard who has a vendetta against the Dursleys for some reason and decides to attack when Harry is home alone. Maybe the Dursleys once unknowingly wronged this wizard's family, and he wants revenge.
Well, of course, Kevin would be there. Maybe there could be a new character, like a kind old lady who runs a bakery near the hotel. She could give Kevin free cookies and some useful advice.
Since I don't know the exact 'home alone novel', I can't say for sure. But it could be a young boy or girl as the main character, perhaps with some neighbors or family friends who play important roles.
It depends on the character. Some might like it because it gives them a chance to see new interpretations of their world. For instance, a character who loves adventure might enjoy a fanfiction that takes the Home Alone concept to an extreme adventure setting.
There could be a lone traveler who Ash meets while he is alone. This traveler might have a unique way of training Pokemon that Ash has never seen before and could teach him some new tricks.
Well, they might have some epic battles against monsters that somehow find their way into their home. Since Percy is a son of Poseidon and Annabeth is super smart, they could use their unique skills to defend the place.