Here's ten eight books that made me laugh (or, at least, grin, since I rarely laugh out loud) :
Percy Jackson series (or all books by Rick Riordan, basically)
Rick's writing is just the funniest, okay? The first time I read The Lightning thief, I couldn't stop laughing until my family stare at me weirdly.
The Infernal Devices by Cassandra Clare
Because of our one and only Herondale here, William. Planning to re-read this one since I miss his jokes.
The Distance Between Us by Kasie West
I was grinning widely when I read this one because Caymen and Xander's banters are the cutest!