From the day in early April that Sin boy released his song Mama, we can only find himself and the other popular Greek Hip Hop artists at the top of the charts: Light, SNIK, Mente Fuerte, Hawk, Bloody Hawk, Baghdad.
Sin boy already has 2 of his songs in the top 10 of the all time charts, off course he has since removed his top hit Mama from Youtube.

You can find the top 100 chart here and the top 20 weekly chart of greek songs in YouTube only here.