I wouldn't even know where to begin to direct you as You Tube. Their catalog is pretty varied in flavor. You have the epics in the 70s. The synth driven 80s. The
Red Sector A has synths that will haunt you...the performance is from 1984..that stage show was ahead of the times then.
Xanadu from Exit Stage Left....if you already know that title from a certain Olivia Newton John song and movie......keep in mind this song by Rush predates Olivia's and will force you to have a completely different take on what the title means to you.
and of course....this relatively recent performance needs no introduction: