Found 2 биржи where Usual USD is traded for USDT. According to the data on 7 October the most optimal price to exchange USD0 for USDT is ₮1 for 1 Usual USD. This rate is fixed at Pancakeswap V3 (Ethereum) at the maximum trading volume of the pair USD0/USDT - 11.8 ths. USDT.
The maximum daily trading volume is observed in the USD0/USDC trading pair at Fluid and reaches ₮ 4,564,173.83 (0.206% of the exchange's total trading volumes) at the price ₮ 1 per 1 USD0.
The minimum price to buy USD0 for USDT is 0.99 - on the exchange Uniswap (v3).