The people telling their stories in Dan Simmons' "Hyperion" is remarkably human to imagine and very touching considering how it is set in a super-technological future.
The story of the Martian Settlers in Kim Stanley Robinson's b"Red, Green and Blue Mars" is also very good for it's coherence across a long timespan.
Metro 2033 by Dmitry Glukhovsky is a fantastic read, though admittedly more for its mysterious & fantastic elements than the character depth, but its highly recommended nevertheless.
That's just a few that came to mind today.
#books #stories