When exchanging $USDC for stablecoins, the USDC/USDT trading pair is preferred due to its high liquidity and widespread acceptance. USDC is regularly audited by compliance organizations, offering high transparency and helping with risk control; USDT is known for its market depth, allowing for large exchanges to be completed in a short time. It is recommended to use limit orders or staggered market orders strategies, operating during the best liquidity time windows to reduce slippage and transaction fees, and to obtain the best price through comparing exchange rates across multiple exchanges.