Strange could develop his patience. Dealing with an exhaust fan - related magical situation would require him to be calm and observant. For instance, if the fan is creating erratic magical energy bursts, he can't just lash out. He has to study it, which helps him become more patient in his approach to solving problems.
I really like 'Strange Encounters'. It delves into an alternate universe where Stephen Strange has to face a different set of challenges. The author does an amazing job of creating a new and exciting world for Strange to navigate, and the way they write his character is very true to the original while also adding new dimensions.
One interesting Stephen Strange fanfic could be those that explore his early days of learning magic at Kamar - Taj. They might show his struggles with the complex spells and his interactions with the other sorcerers. For example, a fanfic could focus on his friendship with Wong and how they overcame challenges together in the mystic arts.
The arc reactor in fanfiction involving Stephen Strange can also be a source of conflict. Some might write that the energy from the arc reactor is disrupting the magical balance that Strange is trying to maintain. This could lead to a tense relationship between the two characters at first, but as the story progresses, they could find a way to work together to either control or utilize the arc reactor's power in harmony with magic.
There's also a fanfic called 'Love in the Mystic Arts'. This one combines the magical world of Doctor Strange with the relationship between Stephen and Christine. It has some really interesting plot twists where Christine gets involved in the magical realm more than she expected, which adds a whole new layer to their relationship.
Another theme is redemption. Sometimes one of them may have made a mistake in the past and the other helps them find a way to make up for it. For example, Tony's past actions causing destruction and Strange using his magic to help Tony see a new way forward.
You can find Stephen Strange fanfiction on websites like Archive of Our Own (AO3). It has a large collection of fan - created stories about various characters, including Stephen Strange. There are different categories and tags to help you find exactly what you're looking for.
Perhaps in the fanfiction, Harry Potter gets lost in the multiverse and ends up in the world where Stephen Strange operates. Strange takes Harry under his wing, teaching him about the different forms of magic beyond what he knows from Hogwarts. Harry, in turn, could introduce Strange to some of the more unique magical creatures from his world, like the Hippogriff.