ESP32-DevKItC starter kit is recommended on AWS IoT portal and provides a quick way to start IoT development on microcontrollers.
ESP32 Starter Kit with 6 sensors is recommended by Google Cloud IoT Core and provides you with a quick way to start IoT development
ESP32-PICO-D4 starter kit is designed by Espressif Systems specifically for the AWS Loft event dedicated to Espressif.
TI CC3220 starter kit is recommended by Google Cloud IoT Core and provides a quick way to start IoT development on TI microcontrollers