Chuck has listed most of the essential Earl Hines solo dates.
I would like to add the Audiophile series (not sure the vinyls have been reissued on CD) that included solo explorations of works by W.C. Handy, Louis Armstrong and Hoagy Carmichael. I am currently on a Hoagy Carmichael kick and that Hines Audiophile vinyl (Hines Does Hoagy) is a favorite on my current playlist!
A superb album that has few matches. Yes, Fatha knew best!
At some time there were new albums from Hines appearing every week (or two weeks at the most) and at some point I was about to give up. Glad I did not, most of those albums are now unavailable and it's a damn shame.
One more Hines I have to recommend is the M&K RealTime 'Earl 'Fatha' Hines Plays Hits He Missed', one of those direct-to-disc album, with Red Callender and Bill Douglas!
And there are also the Black and Blue albums (the Hines/Budd Johnson 'Dirty Old Men' session remains exhilarating), and there are so many more...