Amazon has some Step Into Reading kids books on sale again. All of these have free Prime shipping:
Nella the Princess Knight ($1.48): https://www.amazon.com/Sing-Nella…5247650
2 Books in 1: Mulan and Merida ($1.78): https://www.amazon.com/Mulan-Meri…73643803
Super Friends (Flying High) ($1.93): https://www.amazon.com/Super-Frie…03758520
Crash Boom Roar (The Good Dinosaur) ($2.48): https://www.amazon.com/Crash-Disn…73643367
The Shy Little Kitten ($2.48): https://www.amazon.com/Little-Kit…553497634/
Cars 3: Driven to Win ($1.48): https://www.amazon.com/Driven-Dis…736436820/
Also, this one isn’t a Step Into Reading, but it is a Little Golden Book:
Tangled ($2.22): https://www.amazon.com/Tangled-Di…0736426841