Hello, I can recommend you the service at
https://crypocto.com/nl/USDT_TRC-20-to-BTC_BTC. This is a reliable cryptocurrency exchanger with a large supply of funds - both virtual and fiat. Exchange is possible without registration. Commissions are included in the current rate. However, you can get some of your money back after completing the transaction if you register on the site and join the loyalty program.