Throwing up the Naruto fic
Obito-Sensei for a rec! A Sakura-centric story, whose fundamental butterfly is that Obito survived Kannabi Bridge, not Kakashi, and then became Team 7's sensei. Sakura is definitely the chief protagonist, but all four members of Team 7 play critical roles from start to end; Sakura is just first among equals, as it were. There's also a myriad of other important background world building changes that spin out as the story unfolds, but I think the story as a whole rings true to the tone of canon, and the changes aren't willy-nilly, but concrete what ifs that help develop and build up the story's themes and overall arc. It's ultimately a very different story from canon, with little attachment for the usual stations of the canon, but I think it genuinely captures the heart of what made the original Naruto story great.
Reading it genuinely had me hooked and excited the whole way through just like reading the Naruto manga had me hooked, and I'm excited to pursue a reread and take it all in as a whole.