I am making use of stablecoins only for short term based trading and I will not plan up anything with stablecoins until we are having a truly decentralized one.
Truly decentralised Stablecoin will be hard to come by because it's ability to be a Stable coin will be affected if it is decentralised. Stablecoins are not Crypto since they are pegged to fiat.
USDT will remain the Stablecoin of choice for a very long time, reason is that it is widely acceptable and also it is crosschain.