$BTC

"You're looking for information on coin pairs with Bitcoin (BTC)? A coin pair refers to a pair of cryptocurrencies that can be traded against each other. If you're looking for BTC coin pairs, here are some popular options:

1. BTC/USDT (Bitcoin/Tether)

2. BTC/ETH (Bitcoin/Ethereum)

3. BTC/LTC (Bitcoin/Litecoin)

4. BTC/BNB (Bitcoin/Binance Coin)

What do you want to do? Trading, investing, or something else? Let me know!"

Let me know if you'd like more details or specific information on trading or investing in these pairs!