The clash of different worlds is the most interesting. For example, when Spy x Family crosses with a superhero universe, seeing how the non - superpowered Forgers handle the challenges in a world full of super - powered beings is exciting.
A really cool Spy x Family crossover fanfiction involves crossing over with 'One Piece'. Loid having to deal with pirates and devil fruits while trying to keep his family's cover intact is quite a wild concept. It often includes some really creative action scenes and comical moments as Anya tries to understand the strange new world of One Piece.
One idea could be to cross it with a superhero universe. For example, Anya could suddenly gain real superpowers and the Forger family has to deal with that while still maintaining their cover. Twilight might have to figure out how to use Anya's powers for his missions without blowing their family facade.
If it's a crossover with a shonen anime like Naruto, Naruto himself could be an interesting addition. His boisterous personality would contrast with Loid's cool and calculated nature. And Anya would be fascinated by his ninja skills.
Well, Spy x Family fanfiction can be really interesting. Some fanfictions might explore different relationships between the characters in more depth. For example, they could focus on the bond between Anya and Loid in a new situation that wasn't shown in the original manga or anime. It's also fun to see how authors play with the spy and assassin themes in unique ways.
Spy x Family manga has wrapped up. It provided a conclusive and fulfilling storyline that wrapped up all the loose ends. Now you can binge-read the entire series without any interruptions.