Moxy, How To Kill Your Family, This Is Where It Ends, Faust, Divine Rivals, I Was Born For This, Song of Wraiths and Ruin, Oracle Code and My Brilliant Friend. And approximately a gazillion fics on AO3 and Wattpad that I don't even know of.

Funnily enough, they don't all love the middle grade books, they also don't all love the stuff they have to read for school, but that's... Kinda the point. Just saying.