$BTC Here are some popular cryptocurrency pairs with Bitcoin (BTC):

1. *BTC/USDT* (Bitcoin to Tether)

2. *BTC/ETH* (Bitcoin to Ethereum)

3. *BTC/LTC* (Bitcoin to Litecoin)

4. *BTC/BNB* (Bitcoin to Binance Coin)

5. *BTC/SOL* (Bitcoin to Solana)

You can find real-time prices and trading information for these pairs on platforms like:

1. Binance

2. Coinbase

3. Kraken

4. CoinMarketCap

5. CoinGecko

Some specific coin pairs with Bitcoin include:

1. *AAVE/BTC* (Aave to Bitcoin)

2. *ALCX/BTC* (Alchemix to Bitcoin)

3. *ALGO/BTC* (Algorand to Bitcoin)

Would you like more information on a specific pair or exchange?