Namaikizakari., Kiss de Seiyaku Recommendations
Well, so far I read Kiss de Seiyaku, it has teasing and arrogant male protagonist. Kinda remind me of Namaikizakari. Eventhough Naruse of Namaikizakari didn't described as a playboy one like Haruto at Kiss de Seiyaku.
Well, if you like this kind of male protagonist, I'm pretty sure you will like them. Eventhough they give you different kind of story. But, they are worth to read.