Sci-fi has been a deep love for about 40 years. It began with Asimov when I was a teenager and it hasn't stopped. And it's a genre where older authors are still very much as good as the newer ones. Hopefully I can help you discover some great authors...
Just brilliant. And I love long series!
The Expanse| James Corey
A series I've read many times. It introduces all the basis of robotics sci-fi and probably guided actual robotists in their research.
The Caves of Steel - Isaac Asimov
Discovered Weir recently and devoured every book he wrote. I love the mix between science and adventure.
Project Hail Mary| Andy Weir
Better than the film
The Martian| Andy Weir
Fascinating take on human turning into AI
We Are Legion (We Are Bob) (Bobiverse Series #1) - Dennis E Taylor
1st book in the brilliant Ender series. I saw the film well after I read the series and it didn't have the same fascinating qualities. I often find that books leave more space to imagination.
Ender's Game - Orson Scott Card
A classic. Asimov is the father of modern sci fi and still a visionary.
Foundation (Foundation Series #1)| Isaac Asimov
To be read after the caves of steel series
Prelude to Foundation| Isaac Asimov
Another classic not to be missed
Rendezvous With Rama| Arthur C Clarke
An interesting take on AI
All Systems Red (Murderbot Diaries Series #1)| Martha Wells
Another classic I've read many times
2001: A Space Odyssey (Space Odyssey Series #1)| Arthur C Clarke
A dark haunting story, the first in a fasicnating series.
Hyperion (Hyperion Series #1)| Dan Simmons
What happens when AI tries to take the power over humans? So very actual.
The Fall of Hyperion (Hyperion Series #2)| Dan Simmons
What I love in the Ender's series is that each book brings it to a totally different place. The first is war, this second turns away from that in an unexpected way.
Speaker for the Dead| Orson Scott Card
Another one I read well before the movie came out. The book is much better!