What are the best isekai anime to watch?

The Rising of the Shield Hero is a Japanese isekai anime television series released in 2015 based on a manga series. It follows the adventures of otaku Iwatani Naofumi who got summoned to another world.

GATE is an anime television series adaptation released in 2015 based on the isekai Japanese manga by Takumi Yanai. It follows the aftermath of a gate opening which allowed access to a fantasy world. 

Wise Man's Grandchild, also known as Kenja no Mago, is an anime television series adaptation in 2019. It is about a man named Shin who is reborn in a new world after he died and is taught magic by Merlin. But, common sense wasn't taught to him. 

An office worker is resurrected in an alternate world by Being X as a girl. As Tanya Degurechaff, she joins the country's military and applies the same ruthless performance from his previous life to her military career. 

In Another World with My Smartphone is an anime television series based on the Japanese light novel series of the same name. It is about Touya Mochizuki who is resurrected in another world after God accidentally kills him. 

The Devil Is a Part-Timer!, also known as Hataraku Maou-sama!, is a 13-episode Japanese comedy anime produced by Sotsu and voiced by  Ryota Osaka, Yoko Hikasa, and Nao Toyama. The pilot episode premiered on Spring 2013.

The Seven Deadly Sins, also known as Nanatsu no Taizai, is a fantasy anime where a group of knights is disbanded. Ten years later,  there's a coup d'état the king is captured. The princess then starts a journey to find the Seven Deadly Sins.

Fairy Tail is a Japanese animated series that takes place in a fictional world populated by wizards who coalesce into guilds. Lucy joins Fairy Tail, a guild famous for its destructive antics and her adventure begins.

How Not to Summon a Demon Lord is an anime television series adaptation of the Japanese manga of the same name. It is about hikikomori gamer Takuma Sakamoto who is summoned by two ladies in a world like his favorite MMORPG Cross Reverie. 

Mondaji, also known as Problem Children are Coming from Another World, aren't they?, is 2013 anime TV adaptation series. It follows three teenagers who receive a mysterious invitation transporting them in another world called Little Garden. 

Outbreak Company is one of the best isekai anime released in 2013 based on the manga of the same name written by Kiri Kajiya. It centers on otaku Shinichi Kano who is kidnapped and wakes up in an alternate world with a fantasy set-up. 

Drifters is a 12-episode anime series created by Kohta Hirano. Various historical fighters are summoned from across time to wage war on each other, with the fate of the world in the balance.

InuYasha is a feudal fantasy romance anime based on the manga series of the same name by Rumiko Takahashi. This anime was broadcasted at the Weekly Shonen Sunday from 1996 to 2008. 

Isekai Cheat Magician is a Japanese anime television series adaptation by Encourage Films released in 2019. It centers on Nishimura Taichi and Azuma Rin transported into an unknown land full of monsters, beastmen, dwarves and more. 

Cardcaptor Sakura is an action fantasy adventure magic anime TV series based on a manga written by Clamp. Aired from 1998 to 2000, this anime was written by Nanase Ohkawa and directed by Morio Asaka.

Re:ZERO − Starting Life in Another World is an anime television series adaptation released in 2015 by Kadokawa. It focuses on Natsuki Subaru who finds out he can't die after being suddenly transported to another world. 

Re:Creators is a Japanese anime television series exclusively streamed by Amazon, which is based on the manga Re:Creators One More! by  Yuki Kumagai. It Sota Mizushino who got involved in a battle between several characters in the real world. 

Blood Lad is an anime fantasy series released in 2013. It first aired on July 7, 2013, and ended with its 10th and final episode on September 8, 2013. It features the story of Staz Charlie Blood and his vampire gang.

Konosuba is about Kazuma Sato’s brief life that was over due to a traffic accident, but he wakes up to see a girl before him. She claims to be a goddess and asks if he would like to go to another world and bring only one thing with him.

Log Horizon is a 25-episode anime adaptation of a novel of the same name. It is produced by Satelight. It follows Shiroe and friends as they are trapped in the popular Virtual MMORPG, Elder Tale, after the game's latest update.

Sword Art Online is a fantasy romance anime series that tells a story about 10.000 VR players including Kirito and Asuna that are imprisoned on a game without the chance to return to real life. The anime was first released in 2012.

Digimon Adventure, also known as Digimon: Digital Monsters, is a Japanese anime television series created by Akiyoshi Hongo. It follows the adventures of a group of children in the Digital World to save the world from evil. 

Now And Then, Here And There, also known as Ima, Soko ni Iru Boku, is a Japanese anime television series released in 1999. It is about Shuzo "Shu" Matsutaniwho is transported to another world after attempting to save an unknown girl. 

The Familiar of Zero is an isekai anime television series based on the Japanese light novel of the same name. It follows Saito who is suddenly summoned to the magical kingdom of Halkeginia and becomes a servant of Louise. 

The Girl in Twilight (Akanesasu Shojo) is a Japanese isekai anime series released in 2018 by the Animax channel. It follows the adventures of high school student Asuka Tsuchimiya and her friends after opening a door to a parallel world. 

Grimgar of Fantasy and Ash, also known as Grimgar, Ashes and Illusions is an isekai anime based on a manga of the same name. It follows the adventures of Haruhiro in a fantastic world called Grimgar after he wakes up with no memories. 

Death March to the Parallel World Rhapsody is an isekai television series released in 2018. It follows computer programmer Ichiro Suzuki who is transported into a parallel world resembling some of the fantasy RPG worlds he worked on. 

The Twelve Kingdoms, also known as Record of 12 Countries, is an isekai anime released in 2002. It follows Youko Nakajima's journey in a mystic world after he was approached by a strange man claiming he is the ruler of his kingdom. 

.hack//Sign is an anime television series released in 2002 by studio Bee Train and Bandai Visual. It centers on Tsukasa who is stuck in an online role-playing game The World which is full of magic and monsters after he wakes up inside it. 

Spirited Away is a Japanese movie written and directed by Hayao Miyazaki. It follows the story of yokai and the spirit world and mythology of Japan. Chihiro and her parents are traveling to their new home when they enter a magical world.

Fushigi Yuugi, also known as The Mysterious Play or Curious Play, is a Japanese animated series based on the manga of the same name. It centers on Miaka Yuuki and Yui Hongo who were taken into the book called The Universe of the Four Gods. 

Magic Knight Rayearth is a Japanese anime series wherein three schoolgirls from Tokyo were transported to the magical land of the Rune-Gods. With their guide Mokona, the three went on a quest to rescue the princess and return home.

Isekai Quartet is a Japanese anime series wherein the world of isekai series KonoSuba, Overlord, Re:Zero − Starting Life in Another World, and The Saga of Tanya the Evil collide and cross over resulting in chaos. This is a chibi-style anime. 

Restaurant To Another World, also known as Isekai Shokudo, is an anime television series adaptation. It centers on the restaurant Western Cuisine Nekoya which opens in secrete on Saturdays for unique guests from a parallel world. 

Kaguya-sama: Love Is War or Kaguya-sama wa Kokurasetai: Tensai-tachi no Renai Zunousen is a romantic comedy school anime that premiered on Winter 2019. The psychological anime first aired on January 12, 2019, and will end on March 30, 2019.

The Vision of Escaflowne is a fantasy romance anime directed by Kazuki Akane and written by Shoji Kawamori released in 1996. It follows the adventures of Hitomi Kanzaki after she is transported to the world of Gaea.