To get the best experience, focus on the major canon arcs that drive the main plot.
The Last: Naruto the Movie (Watch after ep 493) is the only movie that is essential to the canon story. Naruto: ShippГ»denTV Show | 2007
Focuses on the life of Itachi Uchiha, providing critical context for his actions. To get the best experience, focus on the
The massive final conflict of the series. While legendary, it is heavily interspersed with filler arcs that can be skipped for a "lean" experience. Recommended "Good Filler" The massive final conflict of the series
If you want to stick strictly to the main story, the following chunks are safe to bypass according to reviewers from Radio Times and HowStuffWorks : Six-Tails Unleashed (Eps 144–151) Past Arc: The Locus of Konoha (Eps 176–196) Paradise Life on a Boat (Eps 223–242) How to Watch Movies