In the distant future many things have changed. Worlds are colonized and people travel the stars freely. The GOTT (Galactic Organization of Trades and Tarifs) exists to maintain order and peace along the galaxies. Enter two ES members. Eclair and Lumiere. They are sent on missions to keep the universal peace, under the flag of GOTT. But soon they come to realize that there is more going on behind the scenes than they previously imagined...
These two are actually very similar.
Both series have large casts consisting mostly well-written, believable girls.
If you enjoy the fun science-fiction with spaceships, colonised planets and the like of one of these shows, you are sure to love the other.
Guided by a star only they can see, a group of maidens known as HiMEs have begun to gather at Fuuka Academy. These young women have been endowed with dangerous supernatural powers that they can use to their heart's content, but there's a price: to wield them, they must put their most important thing on the line. Now, in the midst of school work and friendships, they find themselves caught in the midst of strange conspiracies seemingly related to the terrifying monsters that attack them. Is the power of the HiMEs strong enough to save themselves and the ones they love?
Although Mai-Hime and Mouretsu Pirates have different tones and overall feels, Marika and Mai are very similar characters. This is a gut-feeling rec, but I think if you like either MC, you might do well to try the other show.
When the oppressive Kingdom suddenly conquers the planet Kibi, a group of space cadets are stranded aboard the spaceship Amaterasu. With no money or power, the crew is funded by the Space Channel TV station… for a price. For though they are given the money to buy the Amaterasu and battle the Kingdom, Shinon and the rest of the cadets must also become reality TV stars, allowing the network to dictate how they look, how they fight, and how they react when faced with the horrors of death. For the cadets aboard the Amaterasu, the battle has just begun...
Call it somewhat of a hunch, but regardless of the plots not being similar I think you may like one if you liked the other (albeit SO is far superior of the two). At least in the first 4 eps of MP, there's plenty of similarity in the strategic (to varying degrees) elements, and both take place in space and involve young adults.
The eccentric Suzumiya Haruhi wants nothing more than to meet aliens, time travelers and espers… but she’ll have to settle for the everyday Kyon instead! Along with the mysterious Itsuki and the vacant Mikuru, the duo forms the SOS Brigade – a club whose mission is to discover the mysteries of the world. Armed with a razor sharp wit and a skill for manipulation, Haruhi will stop at nothing to have fun at all costs, even at the expense of Mikuru’s dignity!