Total Recommendations: 7
Despite it's title, it's a more innocent, more drama and less action playoff of the Bakemonogatari idea, and the Clannad idea (not After Story). Before talking about the similarities, these are both absolutely touching shows and deserve your attention even if you've seen the other. They both have a fresh take on things. A seemingly typical guy, who keeps his distance from others, notices a girl keeping her distance from others. Why are they keeping their distance? Because they each have a secret. Our main man, Sakuta has been dealing with his issues for years, and finds a girl who is in desperate need of help. Of course Mai won't ask for it, at first.These issues are all of the haunted/apparition type. He saves her, they end up together, but of course that's only the first few episodes. Then he'll stumble onto another girl and selflessly end up helping her.
Both stories start with a lighter tone and seemingly less serious setting and evolve into very touching stories with serious heart-wrenching moments. These stories require that they be watched in order and fully to capture the experience. Don't forget to include the prequels/sequels.
Both are about students at Magic schools who are marked as failures but are actually quite strong due to unique abilities. They each have a younger sister who adores her older brother and also have a female lead that is marked as exceptional yet is not as strong or loses to the main character.
These are for people who can really enjoy an artful story. These are both quite unique anime. The only real similarities between these involve immortality, but they play into the stories in very different ways.
If you're into the neuroticism and breaching sanity given through bits of Soul Eater and crave something more intense, Elfen Lied might be a good route.
While these two aren't all that similar, they both have a lot of violence along with a lot of really messed up stuff that might be too much for some people to stomach. If you are looking for something neurotic, and horrifying, Black Lagoon season 2 starts off with a bit of that while Elfen Lied holds that for its entirety. Elfen Lied is a piece that you figure out more about each time you watch it, watching it a second time a few months after your first viewing is highly recommended. Black Lagoon season 2 is something you'll likely want to watch again, but it doesn't have an added effect in the rewatch that Elfen Lied has.
Powerful organizations target the main characters. Conspiracies/terrible secrets are uncovered. While Steins;Gate deals with time-travel theories, avoiding world domination, and preventing death (and a serious love story), Canaan explores a past involving human experimentation, rivalry, and loss. Both involve a character shouldering a burden while doing whatever they can to save a dear friend. Canaan has a lot more intense fighting, but lacks a traditional love/relationship development.