Dear lightning,
the Lamrim classic is, as mentioned, LIBERATION IN YOUR HAND; if you like to read more, here's another lamrim book also based on Kyabjes Pabongkha and Trijang Doje Changs' teachings -ANTHOLOGY OF WELL SPOKEN ADVICE ON THE GRADED PATH OF THE MIND, by Geshe Ngawang Dhargyey, published by LTWA.
About the 6 yogas of Naropa there are two collections of texts by Glenn Mullin (a rather academic affair); the only one known to me with concrete practical advice available to the general public - based on Je Tsongkhapa's commentaries - is Lama Yeshe's THE BLISS OF INNER FIRE. Anything by Lama Yeshe is a real treat anyday anyway... and in my mind it's pioneers like him who truly love their lineage as much as the great 'classical' masters such as HH Dagom Rinpoche, because they create a bridge for us; a wide open gate to enter Dharma. So much for now; more anytime...
yours, beggar