I used play the snot out of Early Gordon Lightfoot (I think it was called) on United Artists which was a compilation that they seem to have expanded into a double album. Also, there was If You Could Read my Mind which I believe was originally released as Sit Down Young Stranger until the title song became a big hit. Though you still hear it all the time I love the song If You Could... and especially the sinewy guitar of Red Shea.
Besides the great songwriting and singing, hearing Red's 6 string bouncing off Gordon's 12 string on some tunes, For Loving Me comes to mind, was also a highlight. Later albums had a lot of good tunes but those 2 did it for me.

Not Lightfoot but Tony Rice compiled a lot of his Lightfoot covers into
an excellent CD called something like Tony Rice Plays and Sings Gordon Lightfoot.