If you're looking for manga similar to Digimon, you might like these titles.
The god of war and guardian of his namesake planet, Mars, was once sealed away by Seiya, but time has passed and his revival is at hand. Meanwhile, Saori Kido (Athena) is raising the boy Kouga, whose life Seiya saved, and he's been training every day to become a Saint in order to prepare for the coming crisis... Unaware of his destiny, when Kouga awakens to the power of his Cosmo hidden inside him, the curtain will rise upon the legend of a new Saint.
10 years after the Great Tokyo War, each prefectures in Japan had split up into independent nations. Each nations are ruled by a prophet called "Mosa" and an army called "Mob" as they start to compete to take over other countries. Four "Mob" girls from the Saitama clan, Nozomi, Yukina, Ai, Chiaya are ordered by their “Mosa” to travel around Japan riding their motor cycles to mediate multiple battles between nations and clans as they emerge.
The year is 2718 by the Imperial Calendar, and ZIPANG (Japan) has crumbled in a huge battle against Majinki, terrors from the sky that are half beast and half machine. Hurting each other, warping their morals, unable to see a future, the people strive hard to survive each day. The war wiped out 70% of the human race, but amidst the darkness arose the seven members of the XILE Tribe to bring salvation to the race. But now, 500 years later in 3218, the wicked shadows of the Majinki have once again crept up upon them. This is the story of EXAMURAI, that of the XILE Tribe, who will fight to the death to protect their love, dreams and happiness. Having survived for 500 years since the events of 2718, the final battle of the seven members of the XILE Tribe begins under this azure blue sky...
This manga follows the adventures of Satoshi, as he attempts to become the pokemon master.
The Odin Mainland is separated into four counties, in each lives a group of soul masters protecting their county with their soul powers. The most powerful seven of them are known as Noble Lords. Qi Ling has been a busboy in an inn ever since he was young and subconsciously tamed a legendary soul beast in a battle between soul masters. Yin Chen came on orders of the Silver Priests to take him in as his disciple. With his help, Qi Ling heads to the Grave of the Souls to seek his soul weapon. At the very same time, another conspiracy that has long been in the works within the Aslan Empire is gradually revealing itself.
Claus, Lavie, Alvis, and our other heroes board the colony ship, Exile, to return home to the planet humanity abandoned hundreds of years ago. A few months have passed and the quiet, peaceful life they had hoped for is suddenly disrupted when a familiar enemy appears. How did the enemy they left behind a world ago follow them all the way home!?
The story takes place in a barren frontier where people trade goods with each other in order to help each other survive. The Kotobuki Squadron are bodyguards for hire, led by a strict but beautiful squadron leader, an unreliable commanding officer, and a true artisan of a crew chief. Alongside pilots who do not lack for personality, they take to the air in dogfights, letting the engine noise of their Hayabusa fighters ring out in the skies.