In Binance and Kucoin you deposit your USDT there and there is an option to convert it to other currencies without commission and you withdraw it
Problem solved
If you do not want to complete KYC, options of finding a suitable CEX will be limited, especially if you want to make exchange of more than 10K USD.
for small amounts (less than 1k) instant exchanges give you a better rate.
For example, in Binance, withdrawal fee for;
1. BTC - 0.0002 (~$14)
2. ETH - 0.003 (~$12)
Depending on your country and ability to complete KYC, you can find cheaper withdrawal options, and the cheapest withdrawal fees you can find is 0.00004569 BTC, or about $3 ----->
https://withdrawalfees.com/coins/bitcoin