Hi gang,
First things first, as others have said the Dead were all about the live show. I wouldn't expect to convert 100% of folks here but it would be a life changer for some of you.
A couple that caught me late in life that have been discussed already:
Rush (when Neal passed I gave it another listen and for whatever reason it worked, despite not really liking it all through my heavy metal HS experience).
Steely Dan (thanks to the Gaia demo video where they use Hey 19 as the song to show value of their product).
One I still cannot possible connect with even though on paper I should: Little Feat. Everyone raves about Waiting for Columbus and nothing about it excites or otherwise moves me.