I suggest you're watching: Grand Pain, Saikai no Hana, Billet ~osankai natsu no binsen~, Fuyu Tokyo and Fiancialles. If you're looking for the modern Lareine then you can only watch "Image of Never Cage" because it's the only PV I know which includes all 4 current members: Kamijo, Mayu, Emiru, Kazumi.
By the way: Am I right when I think that Kazumi is playing the role of "Scarlet Majesty"? Because his pendant is similar to the pendant on the Scarlet Majesty DVD.