MakerHawk 2pcs ESP8266 NodeMcu Serial Module ESP-12F LUA WiFi Developm
ESP-32S Wifi Bluetooth Combo Module | Makerfabs
Inland ESP-01 USB to ESP8266 Wireless Adapter Module - Micro Center
ESP-01S
AI-Thinker ESP-01F Supper Mini WiFi Module | Makerfabs
3.3v Usb To Esp8266 Esp-01 Esp-01s Wi-fi Adapter Module With Ch340g Usb To Ttl Driver Serial Wireless Wifi Module For Arduino - Integrated Circuits - AliExpress
Amazon.com: DIYmall ESP8266 ESP-01S WiFi Serial Transceiver Module with 4MB Flash : Electronics
ESP-01F, WiFi Module Based on ESP8285, Built-in 8Mbit Flash, SMD18 Package, Ultra-small