If you liked
Mushoku Tensei: Isekai Ittara Honki Dasu
|
...then you might like
Saihate no Paladin
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2nd chance isekai with strong character focus. Mushoku Tensei's world is bigger at this stage, while Saihate no Paladin's worldbuilding is closer to a traditional Tolkienesque setting tho (author seems to be a big fan of Tolkien since there are obvious name references). Saihate no Paladin also has way less (close to none) fanservice.
If you liked
Dorohedoro
|
...then you might like
Sabikui Bisco
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New Weird setting, concrete jungles, masks, mushroom craziness.
If you liked
Kaze no Tani no Nausicaä
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...then you might like
Sabikui Bisco
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Post-apocalyptic world, giant warriors of the past, giant arthropods, weird fauna, giant mushrooms, pollution, airships, semi-uninhabitable world for humans.
If you liked
Dororo
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...then you might like
Kimetsu no Yaiba
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Katana wielders, magic, man-eating demons, curses, and revenge. A sibling or sibling-like relationship between main characters, one with normal speech, one functionally mute.
If you liked
Bocchi Hakase to Robot Shoujo no Zetsubouteki Utopia
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...then you might like
Ponkotsu Ponko
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Both series feature the relationship between a robot and an older man (in Bocchi Hakase it's the professor who created Robo, in Ponko it's the new elderly master for the maid robot Ponko). Both slice-of-life manga, these series deal with themes of humanity and mortality, often with irreverent humour and bittersweet melancholy. It's not uncommon for a reader to laugh and then cry while reading these manga.
If you liked
Kakukaku Shikajika
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...then you might like
Blue Period
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Both series dig into art education and art creation. Yatora and Akiko are both aspiring artists, stumbling their way into the prep schools while dealing with artist's block and anxiety. Both are also observant and perceptive individuals, drawing a lot of inspiration and energy for their art from people around them. While Blue Period is a work of fiction, Kakukaku Shikajika is an autobiography of the award-winning mangaka Higashimura Akiko. The latter also focuses on Higashimura-sensei's friendship with her mentor Hidaka-sensei.
If you liked
Majo to Neko no Hanashi
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...then you might like
Tongari Boushi no Atelier
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Both series feature fellow witches in training, who are anxious about their magic career and growing up. Tongari Boushi no Atelier is longer and darker, while Majo to Neko no Hanashi is closer to slice-of-life.
If you liked
King of Bandit Jing
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...then you might like
Jabberwocky
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Action, noir, sci-fi, fantasy, pretty girls, heists, conspiracies; alcohol, all wrapped in similar sharp graphic styles.
If you liked
Dungeon Meshi
|
...then you might like
Tondemo Skill de Isekai Hourou Meshi
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Fantasy cooking and monster hunting, and most importantly, food porn. Tondemo is a straight slice-of-life isekai while Dungeon Meshi is closer to classic DnD dungeon-crawling fantasy. I personally think the latter has a superior plot, worldbuilding, art, and characters.
If you liked
Mushoku Tensei: Isekai Ittara Honki Dasu
|
...then you might like
Saihate no Paladin
|
Reincarnation isekai with a big focus on character development and relationship.
If you liked
Mushoku Tensei: Isekai Ittara Honki Dasu
|
...then you might like
Murazukuri Game no NPC ga Namami no Ningen to shika Omoenai
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Both series feature hikikomori/NEET protagonists picking up their lives, trying a second chance by connecting with people around them, both real and virtual (in Murazukuri's case).
If you liked
Tenkuu no Shiro Laputa
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...then you might like
Kuutei Dragons
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Kuutei Dragons clearly draws elements from Ghibli movies, particularly Laputa with its sky crews, pirates, sky explorations, and fantastic airships braving the storm.
If you liked
Dungeon Meshi
|
...then you might like
Kuutei Dragons
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Both manga deal with hunting, survival, and eating monsters/dragons. Featuring likeable and well-characterised crews, both series also explore rich worldbuilding and fantastic biology of monsters. Also food porn! Setting-wise, Dungeon Meshi is closer to DnD/dungeon-crawling fantasy, while Kuutei Dragons is similar to Ghibli/Miyazaki works.
If you liked
Dorohedoro
|
...then you might like
Dai Dark
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Both are creations by Hayashida Q featuring necromancy, magic, hyper-violence, quirky humour, rich worldbuilding, masks, deaths, resurrections, skulls, and buff ladies. Dorohedoro takes place in two fictional cities connected with magical portals while Dai Dark takes place in space.
If you liked
Arte
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...then you might like
Blue Period
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Both series feature young protagonists pursuing passion and career in visual art: painting. They both have to navigate various social situations, learning from other people to improve their craft.
If you liked
Tekkon Kinkreet
|
...then you might like
Dorohedoro
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Both series feature vibrant and rich urban fantasy worlds, with quirky characters, gang fights, and dark psychological themes (alter ego, shadow). Dorohedoro is by far more violent and magical though.
If you liked
Saihate no Paladin
|
...then you might like
Sousou no Frieren
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Contemporary classic fantasy with a strong focus on character development, relationships, and slice-of-life. Thematically, both also deal with the themes of immortality and legacy.
If you liked
Dorohedoro
|
...then you might like
Chainsaw Man
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Both series are urban fantasy with strong demonic/occult elements, modern-ish setting, and hyperviolence, featuring graphic jokes and rootable characters.
If you liked
Dorohedoro
|
...then you might like
Golden Kamuy
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Both manga feature a compelling and likeable cast of characters, grey morality, and irreverent graphic humour. Both also have end game plot twists.