 If you liked
Omamori Himari
|
 ...then you might like
Love Yume Mix
|
In Yume, you have average dorky guy meets dream goddess who gives him harem and trouble, whereas Omamori has average and at times dorky guy meets one unique necko-mimi who opens up a whole lot of harem goodness and trouble. So pretty much same concept.
Both Omamori and Love Yume have same art style as well.