A member of the 104th Cadet Corps, Historia Reiss first appeared in Attack on Titan as Krista Lenz, under the guise of a shy, kind soldier, loved by everyone. But fans would soon learn that Historia's role went beyond her position in the Survey Corps. She was born royalty, and she would eventually become the Queen of the Walls.
As proven in the anime, the power of a royal depends on those who support her. Historia's past relationships with the other characters of Attack on Titan helped her take the throne and establish a solid presence as queen, but there would have been other characters who could have supported her in various ways — through friendship, mentorship, protection, or romance.
10 Ciel Phantomhive Could Have Been Historia's Perfect Watchdog (Black Butler)
The main character of Black Butler, Ciel Phantomhive is known as the Queen's Watchdog for his service to Queen Victoria of England. While he fulfills many of his tasks with the assistance of his demonic butler, Sebastian, he's definitely more than a boy who summoned a demon.
He's an exceptional leader and strategist who doesn't shy away from making hard decisions when he needs to. While occasionally reckless and childish, he would have adapted perfectly to the harsh world of Attack on Titan and allowed his new queen to shine just like she deserves.
9 Emma Frost Would Have Been A Great Advisor For Historia (X-Men)
Originally a character from Marvel Comics, Emma Frost has appeared in various movies and cartoons within the Marvel universe. A powerful telepath who also possesses the ability to harden her skin to diamond strength, she's one of the most capable, intelligent, and insidious villains the X-Men have had to face. Her anime version is softer and warmer than her comics counterpart, having abandoned her previous allies.
She also has a great relationship with the young mutant Armor, who she has almost maternal feelings for. The age difference between her and Historia could have been an obstacle to a romantic relationship, but they could have had a deep connection either way. Historia would have definitely benefited from the expertise of a woman like Emma Frost.
8 Maki Would Have Helped Historia Through Her Darker Moments (Jujutsu Kaisen)
Jujutsu Kaisen's Maki Zenin is, in a way, Historia's complete opposite. She's rejected by her clan for having very low levels of cursed energy. She decides to leave her family behind and become a great sorcerer to prove herself to everyone who spurned her, and ultimately takes over her clan. Her pure tenacity is only matched by her superhuman strength.
Maki's solid presence would have greatly benefited Historia, who struggled with suicidal tendencies throughout the early seasons of the anime. With Maki by her side, Historia could have easily remembered, even in the direst of times, just how brave she is and how much she has given her people.
7 Deku Could Have Been Historia's Hero Without Outshining Her (My Hero Academia)
My Hero Academia's Izuku Midoriya has a simple goal: to save people with a smile. But in a world that looks down on him for being Quirkless, it isn't easy to achieve his dream. But his kindness and courage made All Might choose him as a successor for One For All, and those qualities would make him a perfect match for Historia. She could use a hero like Deku by her side.
6 Akame's Ruthlessness Would Have Been A Great Weapon (Akame Ga Kill!)
One of the main characters in Akame Ga Kill!, Akame is an infamously ruthless assassin who wields a special blade. She belongs to the powerful assassin group Night Raid and one single cut from her weapon can kill any opponent. In a world like that of Attack on Titan, such a weapon would be very useful. But her compatibility with Historia goes beyond that.
From a very early age, Akame was forced to undergo special training in order to become an assassin. She was used by the Empire and ultimately rebelled against her abusers, just like Historia did. While she is in some ways emotionally vulnerable, her quiet strength and fierce determination would make her an invaluable ally for Historia. She might be a little socially awkward, but she cares about her loved ones deeply, and that would be just as important as her skill with a blade.
5 Shuna's Gentleness Would Have Comforted Historia (That Time I Got Reincarnated As A Slime)
Formerly an ogre princess, Shuna appears in That Time I Got Reincarnated As A Slime after her village and most of her people are destroyed. Even so, she's able to retain her warmth and gentleness, aiding Rimuru in both diplomacy and domestic matters. S
he also has strong magical abilities, which she uses to anchor the souls of the people of Tempest when they're attacked. Her demeanor and background are very different from Historia's, but together, they could build a strong relationship.
4 Emilia And Historia Would Have Helped Each Other Bear Their Burdens (Re: Zero)
The main heroine in the isekai series Re: Zero, Emilia has many trials to overcome throughout the anime. She is a half-elf and a candidate to become the leader of the Dragon Kingdom of Lugnica, a title she wishes to claim so that she can free her people. She struggles a lot with feelings of uncertainty and self-disgust, especially because of her physical appearance, reminiscent of the witch Satella.
Even so, it's through these trials and tribulations that she grows a lot as a character. She and Historia have many things in common, as both put up a carefree facade when in reality, they have heavy burdens to bear. If they were ever able to meet, these two brave ladies would help each other very much.
3 Alice Zuberg Would Have Been A True Knight For Historia (Sword Art Online)
The childhood friend of Kirito and Eugeo in Sword Art Online: Alicization, Alice is arrested as a child after she accidentally breaks the Taboo Index by breaching the Dark Territory. Brought to the Central Cathedral, she is turned into Alice Synthesis Thirty by the Administrator, Quinella.
Years later, she becomes a master of the Sacred Arts and her willpower is so strong that she is capable of breaking Quinella's conditioning. Her courage is such that she's prepared to face the real world, where she's seen as an artificial being. Historia would have doubtlessly benefited from having Alice's Fragrant Olive Sword in her service, and their relationship could have gone further than knight and liege.
2 Lelouch Would Have Understood The Duties Historia Had To Carry (Code Geass)
The main character of the mecha anime Code Geass, Lelouch is very similar to Historia: he's also a traumatized teenager coming from a broken royal family. He hid his true identity for many years, donning the name of Lelouch Lamperouge and later, the mask of Zero. Toward the end of the anime, he confronts his parents and punishes them for their misdeeds.
He also acknowledges his mistakes and chooses a drastic course of action to fix them. It certainly doesn't hurt that he's a genius strategist and has a magical power that allows him to control anyone. He would have understood Historia's position very well and been a real asset to the true Queen of the Walls. And considering Historia's situation, they might have even been able to have more.
1 Ymir's Love Would Have Made Historia's Best Romantic Match (Attack on Titan)
The relationship between Ymir and Historia is undoubtedly just as iconic as the one between Eren and Mikasa. Ymir has proven her love for Historia on countless occasions, and it's because of her influence that Historia ultimately found the strength to reject her father and become the queen she needed to be.
Despite her love for Historia, Ymir chose to follow Reiner and Bertholdt to Marley and was eaten by Porco Galliard. Even so, the memories of the moments Ymir and Historia shared remain just as powerful.