In the distant future, aliens called Victim destroyed all the worlds of humanity except for Zion. In this desperate time, young boys of the space colonies are sent to GOA to learn how to, and compete for the right to, pilot the fighting machines designated as Ingrids. These child pilots are assisted by EX -- a special power, and by female partners who repair the Ingrids. However, to save humanity, exceptional candidates are needed, and two new students, Zero and Hiead, motivated by their desire to succeed and burning rivalry, may be the human race's last hope...
It is the year 2356 AD, 189 years after a shockwave from a distant supernova decimated the Earth. Since that fateful day, humanity has begun training for a final mission to protect the planet from the inevitable oncoming 2nd shockwave - a mission whose failure means the annihilation of mankind. For Katase and her friends, their training at the foundation Stellvia is just the beginning of an adventure that could lead to saving the world, or seeing its end...
Both series is a type of mecha series, where the main characters is trying to reach an alike goal in mind to become a plot, but along the way they endure harship. Also, their personality develops and makes life long friendships along the way. If you like this one, you will surely enjoy the other.
In the early 21st century, insectoid organisms are invading the galaxy, searching for new stars to house their young. Mankind's only defense lies with space cadets such as Takaya Noriko, daughter of a celebrated admiral killed in battle, and Amano Kazumi, the top of her class. With their skill and the power of the mecha known as GunBuster, the girls must help fight to protect the galaxy from total annihilation...
If you liked Gunbuster, but felt that the nuanced emotional final episodes really bogged down the series as a whole, or if you liked Candidate for Goddess but thought it was missing some necessary depth, be sure to check the other out.
Both are about young teenagers put together in a training facility and focuses on them, their relationships, their rivalries, and the enormous robots they are learning to pilot.
What happens when authority and consequence are removed? When the inmates truly run the asylum. On the spaceship Ryvius there are those who would fight for order, and many more who would fight to destroy it. Love, hate, anger, greed, avarice, and perhaps hope are the fuel for the Ryvius, and only one can save those who call it home...
At first you might not think Candidate for Goddess and Infinite Ryvius have much in common other than both being sci-fi. However both deal with children being thrust into something that changes them and forces them to "grow up."
In the future, a devastating event known as Second Impact has destroyed Tokyo as we know it, giving rise to Tokyo III - a city under siege by mysterious lifeforms known only as Angels. Mankind's only line of defense are the Evangelions, a set man-made machines piloted by a trio of fourteen year-old teenagers, Rei, Shinji, and Asuka. The fate of Japan and the entire world now lie with these three children, though they might not have the power to save the most important thing of all: each other.
Both Pilot Candidate and Evangelion show the arival of a new pilot of giant robots, and teh problems he'll encounter with this new status and during fights. although evangelion is much more complex and deep, Pilot candidate has the advantage of being rather short and summing up the facts to the essencials. If you liked one, the other will probably also be a good thing to watch.
If you liked Candidate for Goddess (or found it a bit lacking), and want a story with a more complex, psychological feel, you should check out Neon Genesis Evangelion. Both feature giant robot-things that are powered by their pilot synchronizing their bio-rhythm with it.
One day, the young Wataru decided to visit a haunted building in search of a ghost, but ended up meeting a boy by the name of Mitsuru instead. He has the ability to use magic, and tells Wataru about another world where the wondrous Goddess of Destiny lives – a goddess who has can grant any wish. The next day, Wataru returns home only to discover that his parents are getting a divorce, and subsequently, his mother ends up in the hospital in critical condition. In an attempt to fix his family, Wataru goes back to the building and sets off on a journey to the magical world in order to gather five jewels, and ultimately, to gain an audience with the Goddess of Destiny...
This is kind of a gut feeling recommendation, but I think the target audience of younger boys who enjoyed the monsters, swordfighting and RPG elements of Brave Story would enjoy the space and light sci-fi elements of Candidate for Goddess, and vice-versa. I got a similar feeling from both, and both heavily feature comradery between their young protagonists.