If you liked
Heads
|
...then you might like
Shinai naru Boku e Satsui wo Komete
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Split personalities and a whole fuck-ton of trust issues that arise
If you liked
Death Note
|
...then you might like
One Outs
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Remove the crime and world-dominating aspirations of the main character and introduce Baseball into the mix, there you have One Outs. Insanely strategy-heavy and one of the coldest main characters in the world of Animanga.
If you liked
Kekkai Sensen
|
...then you might like
Bungou Stray Dogs
|
A bunch of superpowered people fighting other superpowered people in one mess of a city. Comedy-heavy and both don't take themselves tooo seriously, though they will if needed.
If you liked
Cowboy Bebop
|
...then you might like
Black Lagoon
|
A crew of varied individuals doing whatever is needed of them, not shying away from all sorts of trouble. Both have their share of comedy but excell in the more serious and dramatic department. Black Lagoon is not as strictly episodic as Bebop, but also not really as Arc-focused.
If you liked
Pandora Hearts
|
...then you might like
Umineko no Naku Koro ni - Episode 1: Legend of the Golden Witch
|
Similar gothic aesthetics, more mysteries and unanswered questions than you can count, twists and revelations whereever you look and both take their time to properly build up every major event and especially their conclusion. Fighting is also a big part of both, albeit it more focused on intellectual battles in Umi, rather than mostly physical like in Pandora Hearts.
If you liked
Not Simple
|
...then you might like
Ningen Shikkaku
|
Both manga are essentially about the downfall of a man, in slightly different but fundamentally comparable ways.
If you liked
Shoujo Shuumatsu Ryokou
|
...then you might like
Ginga no Shinanai Kodomotachi e
|
Two kids trying to make sense of the world they live in, though Ginga no Shinanai Kodomotachi e has fantasy elements (immortality among others) and is focused on a different kind of survival than Girls' Last Tour. Both also feature heavily existential and highly philosophical topics and themes.
If you liked
Shoujo Shuumatsu Ryokou
|
...then you might like
Tasogareboshi no Sui to Neri
|
Set in a dystopian/destroyed world, focuses on the characters trying to get by day after day, though in Girls' Last Tour its much more of a struggle, while in Tasogareboshi no Sui to Neri its just their somewhat care-free daily life.
If you liked
Imawa no Kuni no Alice
|
...then you might like
Tenkuu Shinpan
|
The Protagonists find themselves in a different world that resembles the old one, yet is extremely different too. Very brutal, everyone has to fight for their survival, people form groups to help their survival, groups break apart and so on.
If you liked
Vagabond
|
...then you might like
Holyland
|
Watch a young and naive fighter grow up in front of your eyes and become a compassionate person. Great fights (although they're more frequent in Holyland), great art (let's be honest though, few Manga compare to Vagabond in terms of art).
If you liked
Berserk
|
...then you might like
Vagabond
|
This comparison has been made ever since the beginning of time, for good reason though. Musashi and Guts share a similar fate, both works detail their respective story accompanied by breathtaking art and both will likely take ages to be done lmao.
If you liked
Ashita no Joe
|
...then you might like
Rainbow: Nisha Rokubou no Shichinin
|
Starts in jail and ends in a boxing ring. While Rainbow focusess much more on the friendship of the cast (and has a much wider and more fleshed out cast), Ashita no Joe puts the importance on boxing fundamentally and in greater detail. Both essentially follow a very similar plot though.
If you liked
Freesia
|
...then you might like
Ikigami
|
Both take place in a futuristic Japan where the rules and norms of society have deviated from what we call ''normal''. Both focus very heavily on morals, death and existence. Freesia may have a grittier feel, but fundamentally both are very similar.
If you liked
Gantz
|
...then you might like
Imawa no Kuni no Alice
|
Games to the death. In both cases there is more to the respective games than meets the eye with lots of mysteries and a varied cast.