That's great news, I have seen a lot of stablecoins nowadays and yes, Terra is still leading the development of these stable coins with their protocol.
Tron shows good performance by issuing its own Stable coin, this aims to be a payment system that can be used by all users on the Tron network, but I think USDT on the Tron network is enough but I believe USDD has other things for the token they developed according to the article above .