2 needed to calculate an average
Both Himawari Youchien Monogatari Aiko Desho! and Dangan Honey are those kindergarten "romance" stories in which a little girl gets a crush on an adult male working at a kindergarten. Both series are overloaded with cuteness and somehow avoid being lolicon ones. If you liked one of those manga, it's very likely you'll like the other one too.
Both manga revolve around a guy working as a teacher in a kindergarten. While both series excel at being cute, Hanamaru Youchien has some squick humor mixed in. If you took a liking to Himawari Youchien Monogatari Aiko Desho! you could give Hanamaru Youchien a try (if you can handle the mix of sugar and squick that is).