A good example of best scientific science fiction is 'Foundation' by Isaac Asimov. It's based on the idea of psychohistory, a fictional science that can predict the future of large populations. Asimov's series spans across a vast galactic empire and shows how scientific principles can be applied to the study of society and history. 'Starship Troopers' by Robert A. Heinlein is another. It presents a military - based science - fiction world with a focus on things like powered armor and interstellar combat. The book also delves into political and social concepts, making it more than just a simple war story. 'Contact' by Carl Sagan is also excellent. It deals with the scientific search for extraterrestrial intelligence and the implications of making contact with an alien civilization.
Well, 'Neuromancer' by William Gibson is a top-notch scientific science fiction. It was one of the first to really explore the concept of cyberspace in a detailed way. Gibson's vision of a digital world where hackers could interface directly with computer systems was very ahead of its time. Then there's 'Ender's Game' by Orson Scott Card. It delves into military strategy, psychology, and the ethics of war, all within a science - fiction setting of a future where children are trained to fight interstellar battles. And 'Snow Crash' by Neal Stephenson also stands out. It has a unique take on a future society where the metaverse exists, and it's filled with references to linguistics, computer science, and anthropology.