Home Assistant Green and Matter with Thread

I currently have a HA Green with a Sonoff Zigbee 3.0 controller. Zigbee has been working flawlessly. I want to add Matter with Thread support to it.

What is the best way to do this? An additional dongle? Which should I purchase?

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Thank you so much. Do you have a recommendation of a good one that will not conflict with my Sonoff Zigbee controller?