Dhalgren was interesting but there’s at least one section that graphically depicts homosexual sex...so you’ve been warned.
Delany’s earlier book Nova is one I’d have on my list, and no queer sex!!!!!!!!!!!!!
Dune and 1984 I read and liked, haven’t read any others on the list. I might add Stranger in a Strange Land, Lucifer’s Hammer, Alas Babylon..all 3 rather dated but classic IMHO.
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Yes, I've read all three. Classics, imho.
Ever read “Footfall” by Pournell and Niven? If you liked Lucifer’s Hammer you’d like Footfall...”hard” SF invasion story.