Here you will find links to all the Zigbee hardware projects implemented on the LILYGO T-Zigbee platform.
The LILYGO T-Zigbee is dual MCU board equipped with a ESP32-C3 with WIFI and Bluetooth (for your custom device code) and a ultra-low power TELINK TLSR8258 chip that support BLE 5 Mesh, Zigbee, RF4CE, Thread 6LoWPAN, HomeKit and ANT 2.4GHz Proprietary Standard).