Start with high-confidence photography for kids books, then narrow by subgenre or adjacent topics.
Kids at Work
Russell Freedman
Can You See What I See? the Night Before Christmas: Picture Puzzles to Search and Solve
Walter Wick
Nic Bishop: Butterflies and Moths
Nic Bishop
A Drop of Water: a Book of Science and Wonder
Houses and Homes
Ann Morris
Volcano
Patricia Lauber
Migrant Mother
Don Nardo
Families
Shelley Rotner, Sheila M. Kelly
National Geographic Kids Guide to Photography
Nancy Honovich
Let's Find Momo!
Andrew Knapp