I have not seen anyone mention the long earth series, a collaboration between Terry Pratchett and Stephen Baxter. It is based on a very interesting concept. Very different in its style to the discworld books, but shows off how good a writer Pratchett was even when straying from his usual fare.
To me, Lobsang and Sister Agnes (even as they appeared in The Long Cosmos) felt much more Discworld-y than did almost any part of Raising Steam.
I have fond memories of the ascendant of the Discworld series, Strata, which is IMO better than the book it’s riffing on (Ringworld). Likewise I enjoyed The Dark Side of the Sun, which riffs off a different theme from Known Space (though I don’t recall any of that theme ending as a theme in Discworld).
Good Omens was also another fantastic collaboration, between Terry Pratchett and Neil Gaiman.
> I have fond memories of the ascendant of the Discworld series, Strata, which is IMO better than the book it’s riffing on (Ringworld).
This isn't hard, as Larry Niven's Ringworld universe books are 1/2 "what if 1960s California culture was in space" and 1/2 "men reacting to high school physics problems".
I think you could write an effective parody of them by just having scenes where one character recites Wikipedia particle physics articles and another one gasps and says things like "this changes everything!".
