If you liked the Soul Eater manga, the Anime-Planet community thinks you'd like:
Fourteen years ago, the witches of the world waged war against humans and due to their immense power, many countries fell under their control. In order to combat this threat, the unharmed nations formed an organisation consisting of humans with special abilities known as the "Witch Hunters". Tasha Gospel is one such witch hunter who, under the codename Magic Bullet Marksman travels the land with his pumpkin-faced supporter, Halloween, taking on missions to defeat witches and earn his income. However, what Tasha really aims for is to locate his sister, Aria, who has been corrupted by the power of a magical hat and is now known as the Red Witch. But will he be able to take back his sister from the ones who stole her in the first place, and can he do it before the curse Aria cast several years ago kills him?
Both mangas have a lot of similiarities. First they all have really good planned universes , with their rules. Main characters are part of a team for saving a world. Both have an idea to hunt down witches and all characters have unique abilities.