Books like Heartstopper, Volume 4
Alice Oseman
Heartstopper, Volume 4 is 384 pages, about 7 hours 2 minutes at 250 words a minute.
12 books to read next
How long each takes
Icebreaker 8.2 h 
Imogen, Obviously 11.2 h 
Edgedancer 4.6 h 
A Boy's Own Story 4.1 h 
The Henna Wars 7.3 h 
Symptoms of Being Human 6.5 h 
Almond 5.0 h 
Flashback 15.6 h 
I Am Not Okay With This 3.2 h They Hate Each Other 6.5 h 
Keeper of the Lost Cities Collection Books 1-5 56.9 h 
It Starts with Us 6.5 h Bar height shows length. Estimated at 250 words a minute.