Genesis - Selling England by the Pound
Yes - Close to the Edge
Rush - Fly by Night
DSOTM, obviously. I only wish I could hear it again for the first time.
And for something completely different, try this one:
https://juliamassey.bandcamp.com/album/five-letters-from-far-away
No way you can get through the first track without agreeing that it's a great tune. The whole album is amazing, start to finish.