Running 3 echo dots and 1 echo, Xiaomi Hub with 27 Devices and Tradrfi hub with 6 Bulbs using Hass.io
Yes HA will be able to integrate Tradfri bulbs with Xiaomi devices. You can use https://www.nabucasa.com/ to discover all devices into Alexa and the alexa App. Using Custom add-ins you can use TTS
