Books like The Ringworld Engineers
Larry Niven
The Ringworld Engineers is 356 pages, about 6 hours 32 minutes at 250 words a minute.
12 books to read next
How long each takes
The Foundation Trilogy 11.1 h 
Foundation and Empire 4.6 h 
A Fire Upon the Deep 11.1 h 
Solaris 4.2 h 
Prelude to Foundation 8.1 h 
Stranger in a Strange Land 8.0 h 
Children of the Mind 7.0 h 
Ox 4.7 h 
The Currents of Space 4.1 h 
A Deepness in the Sky 14.5 h 
Revelation Space 10.3 h 
Windhaven 6.6 h Bar height shows length. Estimated at 250 words a minute.