Thank you friend, it seems we have similar tastes for similar reasons. Would you recommend anything else?
For Reynolds, the revelation space trilogy is he best received and has his biggest ideas. But you could start anywhere. While he has some core themes, his ideas are all over the shop between books; each unique in both style and concepts.
Peter F Hamilton is an odd one. His writing is very male but the hard sci fi ideas and world building are second to none. The darkest place to start is the Confederation universe. The most fun and fantasy adjacent is the Void Trilogy. Despite being a hardcore fan I’m not very well read on him.
For both, their short stories are exquisite, in some cases mind bending and worldview changing.