Hard to pick. Short stories, of course: the Mother Hive, They, Baa-Baa Black Sheep, The Village That Voted the Earth was Flat, The Gardner, and more. The poetry, especially. The Islanders, The Power of the Dog, The Last of the Light Brigade, all the others you might be thinking of. My child and I memorized Gods of the Copy Book Headings, and recited it to each other in quatrains. Long stuff: STALKY & CO, THE LIGHT THAT FAILED, PUCK OF POOKāS HILL. Very early on, THE JUNGLE BOOK, especially Her Majestyās Servants.
And a lot more. My Kipling collection is centered on the Mandalay edition of the collected works, and a couple of other series same, plus odds and ends. Plus a selection of bios and critical studies.
Almost all are packed away (a common phrase) because I needed the shelf space for more Tudor England stuff, but some things are still to hand.