1 My Hero Academia
Watch episode 1 season 3
Just watch E39 (Game Start) or E51 (Moving Into Dorms). - Solacress
2 Cowboy Bebob
Cowboy Bebop is a 1998 anime television series animated by Sunrise featuring a production team led by director Shinichirō Watanabe, screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical designer Kimitoshi Yamane, and composer Yoko Kanno.
The series was not based off a manga or anything, so it can't have filler. - Kuro
3 Dragonball Z
Dragon Ball Z is a Japanese anime television series produced by Toei Animation. Dragon Ball Z follows the adventures of Goku who, along with the Z Warriors, defends the Earth against evil. The action adventures are entertaining and reinforce the concept of good versus evil. Dragon Ball Z teaches valuable ...read more.
Bleach is a Japanese anime series based on Tite Kubo's manga of the same name. Bleach adapts the first 54 volumes of Tite Kubo's manga series of the same name. In addition, 4 anime-original arcs were broadcast in-between and during the adaptations of original arcs of the manga. ...read more.
The Zanpakuto and Gotei 13 arcs were the best - UnderratedEpisodeAdvocate
6 Samurai Champloo
Samurai Champloo is a Japanese anime series developed by Manglobe. Samurai Champloo is set in an alternate version of Edo-era Japan with an anachronistic, predominantly hip hop, setting. It follows Mugen, an impudent and freedom-loving vagrant swordsman; Jin, a composed and stoic rōnin; and Fuu, a ...read more.
7 Fullmetal Alchemist
Fullmetal Alchemist is an anime series adapted from the manga of the same name by Hiromu Arakawa. It is about two brothers, Edward Elric and Alphonse Elric, trying to restore their bodies after failing at bringing their mother back to life. It aired in 2003 and was remade as Full Metal Alchemist Brotherhood ...read more.
8 Yu-Gi-Oh! Duel Monsters
Season 4 may have been filler, but it was outstanding. A perfect representation on how filler should be done.
Season 4 was awesome
9 Code Geass
Code Geass: Lelouch of the Rebellion, often referred to as simply Code Geass, is a Japanese anime series created by Sunrise, directed by Gorō Taniguchi, and written by Ichirō Ōkouchi, with original character designs by manga authors Clamp.
11 Soul Eater
Soul Eater is an anime series directed by Takuya Igarashi and produced by Bones, Aniplex, Dentsu, Media Factory, and TV Tokyo, which adapts the Soul Eater manga written and illustrated by Atsushi Ohkubo.
K-ON! (けいおん!, literally 'Light Music') is a Japanese slice of life and comedy four-panel comic strip manga written and illustrated by Kakifly. It was serialized from 2007 to 2012, and there are six volumes to the manga in total. Kyoto Animation produced the anime adaptation, which aired over ...read more.
Gin Tama, also styled as Gintama, is a Japanese manga written and illustrated by Hideaki Sorachi and serialized, beginning on December 8, 2003, in Shueisha's Weekly Shōnen Jump.
14 Hunter × Hunter
Hunter × Hunter is a manga franchise created by Yoshihiro Togashi. In 1999, Hunter × Hunter was adapted into a 62-episode anime television series produced by Nippon Animation and directed by Kazuhiro Furuhashi. The show premiered on Japan's Fuji TV and ran until 2001. Three separate original video ...read more.
15 Naruto Shippuden
Naruto: Shippuden is the ongoing sequel to the original Naruto anime and covers the Naruto manga from volume twenty-eight on. The TV adaptation of Naruto: Shippuden debuted in Japan on February 15, 2007 on TV Tokyo. It is developed by Studio Pierrot and directed by Hayato Date.
Part 2 has better fillers than part 1, such as the tailed beasts, kakashi anbu, and 2nd chunin exams - UnderratedEpisodeAdvocate
16 Assassination Classroom
18 Fairy Tail
Fairy Tail is a manga franchise created by Hiro Mashima. The manga has been adapted into an anime series produced by A-1 Pictures and Satelight, which began broadcasting in Japan on October 12, 2009. Additionally, A-1 Pictures and Satelight have developed seven original video animations and an animated ...read more.
19 One Piece
One Piece is a manga franchise created by Eiichiro Oda. The manga has been adapted into an original video animation (OVA) produced by Production I.G in 1998, and an anime series produced by Toei Animation, which began broadcasting in Japan in 1999 and has aired 851 episodes to date.
20 Avatar: The Last Airbender
Avatar: The Last Airbender is an American animated television series that aired for three seasons on Nickelodeon from 2005 to 2008. Avatar: The Last Airbender is set in an Asiatic-like world in which some people are able to manipulate the classical elements by use of psychokinetic variants of Chinese ...read more.
21 Haibane Renmei
Several of the earlier episodes do feel like filler but then the show gets really deep and emotional. - wariowanda
22 Death Note
Death Note is a Japanese television drama series based on the manga series of the same name by Tsugumi Ohba and Takeshi Obata.
The show is centered around Light Yagami - a promising highschooler and aspiring detective with a strong sense of "justice".