Found 11 бирж where ETHGas is traded for USDT. According to the data on 22 January the most optimal price to exchange GWEI for USDT is ₮0.03 for 1 ETHGas. This rate is fixed at LBank at the maximum trading volume of the pair GWEI/USDT - 3.7 mln. USDT.
The maximum daily trading volume is observed in the GWEI/BSC-USD trading pair at Pancakeswap Infinity CLMM (BSC) and reaches ₮ 45,567,997.74 (9.09% of the exchange's total trading volumes) at the price ₮ 0.03 per 1 GWEI.
The minimum price to buy GWEI for USDT is 0.02 - on the exchange Bitget.