Adafruit HUZZAH ESP8266 Breakout : ID 2471 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
WiFi 8 Channel Electromagnetic Relay ESP8266 Module Smart Home Controller Compatible with ESPHome Home Assistant. Electronic Nuts Supplier of PWM AC Dimmer for Arduino, Raspberry PI, Microcontroller, MCU
ESP8266 WiFi Module for Raspberry Pi Pico | The Pi Hut