$BTC Here are some popular Bitcoin (BTC) coin pairs:

Centralized Exchange Pairs

1. *BTC/USDT*: Bitcoin paired with Tether (USDT) is a widely traded pair on exchanges like Binance, Coinbase, and Kraken.

2. *BTC/USD*: Bitcoin paired with the US dollar (USD) is available on exchanges like Coinbase and Gemini.

3. *BTC/EUR*: Bitcoin paired with the Euro (EUR) is available on exchanges like Kraken and Bitstamp.

Trading Platforms

1. *Binance*: Offers BTC/USDT, BTC/BUSD, and other trading pairs.

2. *Coinbase*: Offers BTC/USD and BTC/USDT trading pairs.

3. *Kraken*: Offers BTC/USD, BTC/EUR, and other trading pairs.

Other Pairs

1. *BTC/ETH*: Bitcoin paired with Ethereum (ETH) is available on exchanges like Binance and Kraken.

2. *BTC/LTC*: Bitcoin paired with Litecoin (LTC) is available on exchanges like Binance.

When trading BTC, consider factors like liquidity, fees, and market volatility. Always do your own research and risk management.