 If you liked
Konjiki no Gash!!
|
 ...then you might like
Beelzebub
|
These titles are so incredibly similar. The protagonist is partnered with a childish sidekick, for supernatural reasons they become bonded and find friends / fight evil / fight other similar super-powered duos. The sidekick is also apparently the heir to the throne of the kingdom/world he's from. In both manga, even their powers are similar - lightning. That's not to say these series are bad; in fact, quite the opposite. They just approach the story from slightly different angles. Anyway, they're so similar that if you liked one, you'll probably like the other.