One series I haven’t seen recommended yet is Alastair Reynolds novels. Revelation Space is a wonderful series, and if you want to start with a standalone story House of Suns and Diamond Dogs are great choices.
For lighter reading there’s also the Murderbot Diaries by Martha Wells.
There’s other older series that may appeal to you: Vatta’s War and Vorkosigan Saga conf to mind.
Have you heard the gospel of the VelociPastor?