Mizar supports USDT pairs supported on the exchange on which you're trading.
For example, if you're trading on Binance, you can trade all the USDT pairs supported by Binance.
Check here pairs available on different exchanges:
1) Binance: https://www.binance.com/en/markets/spot-USDT
2) Binance.US: https://www.binance.us/markets
3) KuCoin: https://www.kucoin.com/markets
4) OKX: https://www.okx.com/en-in/markets/spot-list
5) Coinbase PRO: https://help.coinbase.com/en/pro/other-topics/api/how-do-i-create-an-api-key-for-coinbase-pro
6) Bybit: https://www.bybit.com/data/markets/spot/
7) Huobi: https://www.huobi.com/en-us/markets/?tab=exchange
8) MEXC: https://www.mexc.com/markets
9) WOO X: https://x.woo.org/en/markets
10) crypto.com: https://crypto.com/exchange/markets
11) Bitget.com: https://www.bitget.com/en/markets
Soon, Mizar will add BTC and ETH pairs.