Rhye

Rhye was a water world of the galaxy. It was among the many exotically-named aquatic planets that caught the interest of the scavenger Rey during her time on the desert world of Jakku.

Behind the scenes
Rhye was first mentioned in Shabby Blue and Das Flute's 2018 canon erotic fiction "Rey for Rent". It could be a reference to the Queen song Seven Seas of Rhye.