Domain Sales :

btcusdt.org - 2 BTC

bitcoin-usd.org - 2 BTC

btcusdt.ru - 2 BTC

bitcoindollar.ru - 2 BTC

btc-bot.org - 1 BTC

ethusdt.info - 0.5 BTC

ethusdt.org  - 0.5 BTC

By suggestions write in private messages.
Or you can officially buy through a registrar at an auction