Books like Attack on Titan, Vol. 6
Hajime Isayama
Attack on Titan, Vol. 6 is 191 pages, about 3 hours 30 minutes at 250 words a minute.
12 books to read next
How long each takes
Maximum Ride Vol. 8 5.5 h 
My Hero Academia, Vol. 1 3.5 h 
Watchmen 7.7 h 
Homeland 6.0 h 
Asterix and the Falling Sky 53 min 
ワンパンマン 12 3.8 h 
Death Note, Vol. 1 3.7 h 
Nimona 5.0 h 
Hilda and the Midnight Giant 48 min 
ワンパンマン 11 3.8 h 
Sword Art Online: Aincrad - Manga 7.0 h 
My Hero Academia, Vol. 6 3.4 h Bar height shows length. Estimated at 250 words a minute.