Some yes, here are all the story arcs and here is how I rate them:
Should Watch:
- Post Arabasta Arc
(episode 131-135 - each episode is independent )
- G-8
(episode 196-206)
- Ocean's Dream
(episode 220-224)
- Foxy's Return
(episode 225-228 - they are on the better spectrum of filler episodes according to me)
- Caesar Retrieval
(episode 626-628 - very important to watch)
Skippable: (can watch)
- Warship Island
(episode 54-61)
- Ice Hunter
(326-335)
- Chopper Man Special
(episode 336 - its fine)
- Spa Island
(episode 382-384)
- Little East Blue
(426-429 - watch this if you enjoyed East Blue)
- Z's Ambition
(575-578)
- Silver Mine
(747-750 - might wanna skip this one if you are asking me)
Marine Rookie
(episode 780-782)
- Cidre Guild Arc
(episode 895-896)
- Special episode 907
Should Skip:
- Boss Luffy Historical special
(291-292, 303, 406-407 - If you were to watch them, watch them back to back)
- All of the Toriko & Dragon Ball Crossovers
(episode: 492, 542, 590 - watch them if you enjoy Toriko and/or Dragon Ball)
I think that I got them all.