If you're looking for sci-fi books to buy for Christmas (or in the Black Friday sales), I've put together a simple website which lists all the ones we've read, suggested and rejected for @mcrscifi over the years.
@pwaring @mcrscifi according to your own scores, looks like you're getting better at picking :) If the goal is to read books that get higher scores.
Looking at my reads this year that are compatible with the kind of books your "club" reads:
Dragonflight, Anne McAffrey
Heart of Darkness, Joseph Conrad (my "sci fi" angle is that one framing is that entire story is a delusion)
Ice, Anna Kavan (not enjoyable, but quite interesting, much to talk about)
The Cyberiad, Stanisław Lem