$BNB Binance Coin (BNB) serves as a base asset for numerous trading pairs on the Binance exchange, allowing users to trade BNB against a variety of cryptocurrencies and fiat currencies. These trading pairs are typically categorized into four main groups:
1. BNB/Fiat Pairs: These pairs enable direct trading between BNB and fiat currencies. Common examples include:
• BNB/USD (US Dollar)
• BNB/JPY (Japanese Yen)
• BNB/ARS (Argentine Peso)
For instance, Binance introduced the BNB/JPY trading pair on March 12, 2024, accompanied by a zero-fee trading promotion for JPY spot trading pairs. 
2. BNB/Crypto Pairs: These pairs facilitate trading between BNB and other cryptocurrencies. Notable examples include:
• BNB/BTC (Bitcoin)
• BNB/SOL (Solana)
• BNB/ADA (Cardano)
3. BNB/Stablecoin Pairs: These pairs allow trading between BNB and stablecoins, which are cryptocurrencies pegged to stable assets like the US Dollar. Examples include:
• BNB/USDT (Tether)
• BNB/USDC (USD Coin)
In March 2023, Binance added the BNB/TUSD trading pair and launched a fee promotion for selected stablecoin pairs. 
4. BNB/Altcoin Pairs: These pairs involve trading BNB against various altcoins. Examples include:
• BNB/SHIB (Shiba Inu)
• BNB/AVAX (Avalanche)
As of five months ago, Binance supported 398 coins and 1,377 trading pairs on its platform, with BNB being a significant component in many of these pairs.  The availability of specific BNB trading pairs may vary based on regional regulations and user demand. For the most current and region-specific information, it’s advisable to consult Binance’s official announcements or the trading platform directly.