ᐯᗩᒪOᖇᗩᑎT
I think these fillers are worth watching.
Naruto:
Kakashi’s Face: Gotta See, Gotta Know (Episode 101)
Land of Rice Fields Investigation Mission Arc (Episodes 136–141)
Kurosuki Family Removal Mission Arc (Episodes 152–157)
The Onbaa ep (Episode 185)
Laughing Shino (Episode 186)
Ino Screams: Chubby Paradise (Episode 192)
Sunagakure Support Mission Arc (Episodes 216–220)
Naruto Shippuden:
Three-Tails Appearance Arc (Episodes 90–112)
Tales of a Gutsy Ninja (Episodes 127–128)
Six-Tails Unleashed (Episodes 144–151)
Road to Sakura (Episode 271)
Ghosts from the Past (Episodes 303–305)
Kakashi's Anbu Arc (Episodes 349–361)
Hanabi Arc (Episodes 389–391)
In Naruto’s Footsteps (Episodes 394-413)
The Pair Episodes (Episodes 480–483)
I also highly recommend watching these movies in the following order:
Watch after 121 episode of Naruto Shippuden
Naruto Shippuden: The Will Of Fire (2009)
Watch after 169 episode of Naruto Shippuden
Naruto Shippuden: The Lost Tower (2010)
Watch after 221 episode of Naruto Shippuden
Naruto Shippuden: Blood Prison (2011)
Watch after 271 episode of Naruto Shippuden
Naruto Shippuden: Road To Ninja (2012)
Watch after 479 episode of Naruto Shippuden
The Last: Naruto The Movie (2014) ^^Must watch
Watch after you finish Naruto Shippuden
Boruto: Naruto the Movie –
The Day Naruto Became the Hokage
Boruto: Naruto Next Generations