I don’t have a formal list, as many do, but I have some suggestions:
Chapter Books:
Sarah, Plain and Tall series
The Boxcar Children (first 19 books)
The Hundred Dresses
Gentle Ben
Trumpet of the Swan
The Cricket in Times Square
Stuart Little
Audiobooks:
any of the Lamplighter Theater Audio Dramas (so worth it!)
The Wonderful Wizard of Oz
Winnie-the-Pooh/The House at Pooh Corner (so much fun to listen to all their voices)
Picture Books/Fun Books
Frederick
any books by Tomie dePaola (Strega Nona, Nana Upstairs, Nana Downstairs, First One Foot, Now the Other)
Jumanji, Zathura
Where’s Waldo? (my kids love these for road trips)
I will probably think of more, but that’s a pretty good start!