Walmart has Xiaomi Mi E26 Smart Light Bulb, 60W Color LED, 1-Pack on sale for $9.99. This is an RGB Wi-Fi bulb also sold under the Yeelight brand. It works with Google Assistant and Alexa and can be controlled with a local API for home automation (SmartThings, Home Assistant, etc).
https://www.walmart.com/ip/Xiaomi…/442295785