Cedric might immediately go to find someone who is closer to Harry, like Hermione or Ron. He realizes that they might be better at dealing with Harry's emotions, so he fetches them to come and comfort Harry. This shows Cedric's understanding of Harry's relationships and his concern for Harry's well - being.
Maybe Harry is crying because he misses his parents. He often feels the pain of their absence deeply, and in this fanfic, when Sirius sees him, that could be the cause.
Well, in some fanfictions, Cedric might use his magical skills to shield Harry from physical attacks. For example, he could cast protective spells like Protego Maxima to create a strong shield around Harry when they are in danger. Maybe in a situation where dark wizards are attacking, Cedric steps in front of Harry and uses his wand to fend off the spells aimed at Harry.
One possible reason could be that Naruto is feeling lonely. Despite having friends, he still has moments when the weight of his past, like being an orphan and ostracized in the village as a child, hits him hard. Jiraiya might see Naruto crying because of these memories resurfacing.
Sakura may react with a sense of urgency. She would drop whatever she was doing and rush to Naruto's side. She'd be worried that something truly terrible has happened. If Naruto is hesitant to talk, Sakura might just sit quietly with him, waiting for him to open up. This would show her patience and understanding, and also how much she values Naruto as a friend.
The plot might involve Naruto crying due to a misunderstanding with his friends. Kakashi witnesses this and steps in to mediate. He first calms Naruto down and then arranges for Naruto and his friends to have an open conversation. During this process, Kakashi shares some wisdom about friendship and communication, helping them resolve their differences.
One common theme is friendship. Since they were both Hogwarts students, many fanfictions explore how they could have been better friends. Another theme is rivalry turned into respect. Given their initial competition in the Triwizard Tournament, a lot of stories show how they grew to respect each other. Also, the theme of sacrifice often comes up, especially related to Cedric's death and how it affected Harry.