One Piece Episode 287
I want to watch Bleach, but the anime has a lot of filler content not in the manga. I'd rather not watch the filler content and only watch the episodes which are directly related to the plot. To be clear, I'm defining a filler episode as one which is not based on any story in the manga or based on extra manga chapters which have nothing to do with the overarching story.
One Piece Episode 287
The following episodes are anime-original content which you should skip if you aren't interested in filler. Some of the other episodes include original elements or reference events from filler episodes, but these do not impact the story in the long run so you can safely ignore them. The ones based on manga omake are noted as such.