The 'Eno album' is definitely Lodger (which is also the weakest of the three IMO), though he was the driving force behind side B of Low bar Weeping Wall.
Heroes is an amazing LP, and well worth a re-listen. The A side is gloriously dense and dark, with some of his most histrionic vocal performances.
I am wary of full on hagiography (despite appearances). Yes, he seemed like a lovely guy, certainly post 70's, but the darkness is a huge part of what made him interesting. Nihilism, occultism, narcissism, paranoia, sexual exploitation and promiscuity, obsessions with image and power which fed his interest in the Nazis - all essential elements of his story.
Im surprised no-one's picked up on the black sun connection with blackstar. Neo-pagan occult symbol of the SS, the Thule society & the Vienna lodge, undoubtedly known to Bowie. He was playing with this stuff right to the end - one last flirtation from an eternal trickster to puzzle the fans? Or (as some of the wilder theories will no doubt have it) the last word in a lifelong dalliance with the occult?