About the Haikyuu ideas

I've got the concept ready. But as some of you requested, I'm adding something besides volleyball. I want to make the main character have a hobby as a 'writer' on the side.

The problem is, are there any anime related to writing?

I remember there were some, but I've totally forgotten the titles since it's been a while since I watched them. So, if any of you have a title in mind, I'd appreciate it if you could drop it in the comments.

Depending on how quickly I can mix the concept together, the Haikyuu fanfiction will be entering production soon!

This is totally random but what do you think of this concept? I just had an epiphany after watching Gen Z talking

Harry Poggers: The Rizzlers Stone

Harry Poggers, a young wizard with mad Rizz, finds out he's special AF. He and his squad try to secure the legendary Rizzlers Stone, which can unlock the ultimate Rizz powers, all while dodging haters and finessing their way through magic school.