Both Tsuki Tsuki! and The Melancholy of Haruhi Suzumiya feature a male lead who meets a god. Said god happens to be a rather cute girl. But the most important part is that both of those male leads are somewhat sarcastic and that they distance themselves from weird things that happen around them. Although Melancholy of Haruhi Suzumiya is a harem of sorts, Tsuki Tsuki! is a regular harem series (aside from the male lead) and it has a little bit too much ecchi in it. Anyway, if you liked the male lead in one of those two series, you'll probably going to like the male lead in the other series as well (though not necessarily everything else).