Have Aesthetic Rhea. Calypso and Atlas Amp Have 12k budget for speakers. Recommendations

First time post. Turning 50 this year and I've always wanted a high end audio system. Looking for speakers either used or new that will handle My Aesthetix gear listed. Room is 20 x 25  8ft ceilings. I listen to all types of music but 70s and 80s rock/heavy metal is what I listen to mostly. I know Vandersteens match well, but looking for further insights

Thanking you in advance for your insight