Hamburg, Germany is a city known for its thriving cryptocurrency community and there are several popular exchanges in the city where traders can buy, sell, and trade various cryptocurrencies. Some of the most popular cryptocurrency exchanges in Hamburg include:

1. Bitcoin.de: Bitcoin.de is one of the largest and most well-known cryptocurrency exchanges in Germany. It offers a wide range of cryptocurrencies for trading and has a user-friendly interface that makes it easy for both beginners and experienced traders to use.

2. Kraken: Kraken is another popular cryptocurrency exchange that is widely used by traders in Hamburg. It offers a variety of trading pairs and has a reputation for being a secure and reliable platform.

3. Bitstamp: Bitstamp is a European-based cryptocurrency exchange that is popular among traders in Hamburg. It offers a variety of cryptocurrencies for trading and has low fees, making it an attractive option for many traders.

4. Binance: Binance is a global cryptocurrency exchange that is popular among traders in Hamburg for its wide range of trading pairs and low fees. It is known for its advanced trading features and high liquidity.

5. Coinbase: Coinbase is a popular cryptocurrency exchange that is widely used by traders in Hamburg. It offers a user-friendly interface and a variety of cryptocurrencies for trading, making it a popular choice for both beginners and experienced traders.

Overall, Hamburg is home to a vibrant cryptocurrency community and there are several popular exchanges in the city where traders can buy, sell, and trade their favorite cryptocurrencies. Whether you are a beginner or an experienced trader, there is likely an exchange in Hamburg that will meet your needs.