One common theme is his growth as a sorcerer. Many fanfics focus on how he hones his skills and becomes stronger. Another theme is his relationships, like his friendship with Yuji or his complex connection with the Zenin family.
There's a fanfic called 'Megumi Fushiguro: A Different Path'. In this, the author takes Megumi on a completely different adventure from the original story line. It's really interesting to see how his character develops in this new scenario. Also, 'Megumi's Hidden Powers' is a fanfic that uncovers some potential powers that Megumi could have, which makes for an exciting read.
Once upon a time, there was a little rabbit. It lived in a beautiful forest. One day, the rabbit decided to explore a new part of the forest. It hopped along a winding path and found a magical glade filled with the most delicious carrots it had ever seen. The rabbit was so happy and ate its fill. Then it made friends with a little bird in the glade, and they played together all day long.
I'm not sure. It depends on where the story originated and who wrote it. Sometimes stories labeled as such can be based on real events, but with some fictional elements added.
Maybe Chagall would share a story about an old man who was a painter. He used to paint the most wonderful landscapes. One day, he decided to paint a picture of a far - away mountain. As he painted, he remembered all the stories his grandfather had told him about that mountain. Legends said there was a hidden treasure there. So, the old man set out on a journey to find the mountain. Along the way, he met many interesting people and had many adventures, all of which he later added to his painting.
I'm not entirely sure which 'Papa Tunde' you specifically refer to. There could be many people named Papa Tunde. It could be a local figure in a certain community, a character in a story or legend, or someone with a personal story that is not widely known without more context.