The recommendation lists below includes titles/authors at somewhat varied reading levels. Parents/students are encouraged, however, to look at the lists for the grade levels above and below the target grade.
For more recommendations, see School Library Journal's Summer Reading 2021. They did not make a 2022 version but this one still has some great recommendations.
Non-Fiction Series/Authors
I Survived: True Stories - Lauren Tarshis
Eyewitness Series
National Geographic Kids
Who Was/Who Were (Biographies)
You Wouldn't Want to...
Fiction Series
The Penderwicks – Jeanne Birdsall
Artemis Fowl – Eoin Colfer
Tuesdays in the Castle – Jessica George
Nathan Hale's Hazardous Tales – Nathan Hale
Jigsaw Jones Mysteries – James Preller
Just Grace – Charise Harper
The Kicks – Alex Morgan
Mysterious Benedict Society – Trenton Lee Stewart
I Survived – Lauren Tarshis
My Life as a Book (Cartoonist, Gamer, ...) – Janet Tashjian
Series of Unfortunate Events – Lemony Snicket
Authors
Katherine Applegate
Judy Blume
Andrew Clements
Kate Di Camillo
Roald Dahl
Chris Grabenstein
Dan Gutman
E.L. Konigsburg
Lois Lowry
Barbara Park
Louis Sachar
Brian Selznik