On top of my mind are Raja Raja Chola I(985-1014) and his son Rajendra Chola(1012-1044). Both were great and just rulers, patrons of literature, arts and architecture. They built a strong navy and Rajendra made conquests in far south east asia. Tanjore Big temple built with granite stones is a standing testimony to the golden period of RajaRaja's rule.
I'm avid history reader n I love this topic.