Based on this product's specifications, here are some alternatives and similar models
Radio-controlled amphibious vehicle Dickie Amphy Splasher RTR 2.4 GHz — ready-to-run amphibian toy
Summary description:
The Dickie Amphy Splasher is a radio-controlled amphibious vehicle with RTR (ready-to-run) configuration and 2.4 GHz control. Designed for both land and water operation, it combines waterproof electronics and amphibious chassis to drive on surfaces and float on water. Suitable for hobby play, outdoor use at ponds or pools, and beginner RC enthusiasts seeking a versatile, easy-to-operate toy.