The following contains major spoilers for the Bleach manga and anime.Tite Kubo's hit shonen manga series, Bleach, has become a breakout anime that's found its way back into the mainstream through its sequel series follow-up, Bleach: Thousand-Year Blood War. Bleach fans finally get closure to this long-running shonen series as this new series finishes Bleach's story and resolves many character arc along the way. That being said, there are still missing pieces in Bleach's narrative when it comes to some of the anime's best characters. Bleach hasn't fully done justice to its main heroes, even with the help of perpetual flashbacks.
Source:https://www.cbr.com/bleach-characters-who-deserve-spinoff/