Below is a long-form guide for the overall Bleach watch order, covering the original series, movies, and the continuation.
The modern continuation adapting the manga's final war arc. This should be watched only after completing the original 366 episodes (minus fillers). Watch Bleach - 005
Widely considered the series' peak. Watch every episode here, though some guides suggest skipping episode 33 and 50 as they are standalone filler. Below is a long-form guide for the overall
Includes Episode 5. This arc introduces Ichigo's powers and the basic rules of the Soul Society. covering the original series
These arcs do not affect the main plot. Many fans recommend skipping them on a first watch and returning to them later if you want more content.