You can change to BUSD or DAI if you want but I don't think USDT is a scam stable coin, it's just this stable coin has many haters they spread FUD news. USDT is the most popular coin in the market and I think every exchanges has USDT. If you are not comfortable using USDT then you can change stable coins like BUSD or DAI these two are trusted.
USDT is as stable as regular USD. The United States prints the USD constantly in large quantities, but as we see it has not fallen in price yet.