It's not common. The Harry Potter series has so many rich elements such as the complex magic system, the dark and light side of wizardry, and the character development of Harry and his friends. Fanfiction writers usually explore these areas more deeply. While pets are a part of the series, they are not as central as other aspects. So a fanfiction that is solely about Harry Potter and pets is not as common as those that deal with broader themes of the wizarding world.
I don't think so. While there could be some fanfictions that involve pets in the Harry Potter world, it's not a very common type. Most popular Harry Potter fanfictions tend to revolve around the main plotlines of the original series like the Triwizard Tournament, the fight against the Death Eaters, or the secrets of Hogwarts. Pets are often just secondary elements in the original stories, so it's less likely for a whole fanfiction to be centered around them.
If you want the clearest chapter reference, go to Chapter 120. Early on, Facing the sudden and somewhat strange request from Jiang Li, Director Sun...; later, the chapter leans on But, as if by some mysterious force, he still instructed his assistant to....
Look to Chapter 49 for the clearest answer. It begins with My phone!!!" Jiang Yan's roar echoed continuously through the mountains in..., keeps building through Watching helplessly as his latest-model phone was taken away by a..., and lands on Thinking this, Jiang Yan marched forward, pulled Jiang.
Look to Chapter 61 for the clearest answer. It begins with Hahahaha, oh my god, Jiang Li's mouth is even more venomous., keeps building through She broke Jiang Yan's defense with just one sentence." "Laughing to death,..., and lands on A cold shower is pretty normal, right?.
Chapter 69 is the strongest chapter-level answer because it starts from Since the phones issued by the program team couldn't log into Weibo, Wen... and follows through on Wen Jiaojiao immediately hugged her arms proudly, specifically waiting to....
The best chapter pointer here is Chapter 90, "Are You Even a Woman?". It opens with Watching He Yun gradually take control of a tractor under professional... and closes on Jiang Li finally let go of Jiang Yan's arm..
Chapter 86 is the strongest chapter-level answer because it starts from After over an hour of fuss, it was finally time to eat. and follows through on But then her expression became resolute and arrogant..
Chapter 77 is the strongest chapter-level answer because it starts from Wen Jiaojiao's reminder calmed Shu Yan down. and follows through on But who knew that the next second, the lottery box would be handed over to....
A practical answer is Chapter 83, because it turns the idea into a concrete scene. The chapter opens with When they received the task, the three of them were already sharpening..., adds pressure through All of this was thanks to Jiang Li's patient guidance., and ends on Since all the guests were.
Chapter 80 is the strongest chapter-level answer because it starts from Jiang Yan and Wen Jiaojiao, one so smug he was almost ascending to the... and follows through on arrogant princess with Princess Disease, I'm totally for it, fam.] [Hahaha....
Look to Chapter 85 for the clearest answer. It begins with Facing everyone's skepticism and curiosity, Jiang Li explained fluently:..., keeps building through The tomatoes are grown by them, and the eggs are also from their..., and lands on This fresh and vibrant flavor blended perfectly..