The last episode of the anime, 389 (23 from Thousand-year Blood War), adapts chapter 592 chapter 593, chapter 594, chapter 595 and chapter 596. Then the story would continue on page 1 of chapter 597, this is the chapter of the manga that you have to read after the anime, it corresponds to Volume 66 that collects the chapters 592 to 601.
The last arc of the Bleach manga is currently being adapted, this after the anime stopped at episode 366, but in 2022 the broadcast of Tite Kubo's work would return, after a wait of more than 10 years. If you decide to start reading the manga, 95 chapters would await you.
The last chapter of the manga is 686, and the last volume is 74 that compiles the chapters from 675 to 686, this in case you want to buy the corresponding manga volume. In the following table, I will summarize the equivalence between anime and manga:
| LAST EPISODE (ANIME): | CHAPTERS (MANGA): | VOLUME: |
|---|---|---|
389 |
Chapter 592, 593, 594, 595 and 596 |
Volume 66 (chaps. 592-601) |
The anime is currently airing with a new episode premiering every Saturday morning, with the exception of Japanese holidays. The manga is finished and you can read it for free through Manga Plus.