Found 3 биржи where Usual USD is traded for USDT. According to the data on 9 February the most optimal price to exchange USD0 for USDT is ₮1 for 1 Usual USD. This rate is fixed at Uniswap (v3) at the maximum trading volume of the pair USD0/USDT - 716.9 ths. USDT.
The maximum daily trading volume is observed in the USD0/USDT trading pair at Uniswap (v3) and reaches ₮ 716,900 (0.0669% 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 Matcha (Ethereum).