Looking for Speaker Input

My system is Luxman C900u pre amp, 2 Luxman M900u amps configured in monoblock mode driving Focal Sopra 3 speakers.  All digital with Aurender W20SE streamer. DAC is Luxman D10x, which doubles as a CD/SACD transport.  My question for the forum is I think the Focals are the weak link.  What speakers would the forum recommend to go with the rest of my gear?