Need recommendations for depressing books with a good ending and easy to read books that can serve as a buffer

Some books I've read and liked
Book of disquiet
The Stranger
Notes from underground
Steppenwolf.
These books ignite a sort of pain in my chest after reading for a bit and I find myself needing some sort of buffer, I usually take a break by just scrolling on my phone but I've been meaning to reduce my screen time so I'm also looking to read some easy, fun, and simple books as a substitute.