Do you have Swimmy?

That and Yhe Snowy Day are my Favorites

I think you'd like the 70s books that were lent us while our daughter was small: a bunch by John Vernon Lord (I mostly remember The Giant Jam Sandwich), as well as My Cat Likes to Hide in Boxes by Eve Sutton. (Newer-ish book rec: the rhythm in The Gruffalo is satisfying to read aloud.)

I can't tell if you have Struwwelpeter on your shelf, which I enjoyed as a boy. www.gutenberg.org/ebooks/12116

Or Max & Moritz, which has English translations that preserve the verse and meter. I like the 19th century illustrations that go with the stories. www.gutenberg.org/ebooks/17161

Charlie & Mouse series, Frog & Toad, Elephant & Piggie (I could write a treatise about the subtle and kind way "I Like Slop" addresses culinary racism). As bedtime books, Wish Tree by Kyo Maclear and Goodnight Everyone by Chris Haughton may both be a bit young-skewing for your kids, but the cadence!

"The Hike" by Alison Farrell makes hikes with kids in Oregon more interesting - so many plants and animals they will see! I see you already have an Usborne lift-the-flap, but I suggest all of them - great car reading. Circling back: Elephant & Piggie has a resurgence in Kinder. Low cost-per-read.

In terms of pure toddler boy joy, Buddy & the Bunnies "Don't Play with your Food" was a HUGE laugh hit, as were "Stop Following Me, Moon!" and "Pine & Boof: the lucky leaf"

Hmm, Florence Sakade's (the anniversary reprint of the 1952? edition) Favorite Japanese Children's Stories and More Favorite Japanese Children's Stories might be a good fit in there; beautiful watercolor and ink paintings for illustrations

Any Kate Beaton books? Ask her stuff is a treasure

*All, curses.