There are several cryptocurrency trading platforms available in the German city of Dresden. Some of the popular platforms include:

1. Bitwala: Bitwala is a Berlin-based cryptocurrency trading platform that allows users to buy, sell, and trade various cryptocurrencies. They offer a secure and user-friendly interface for trading Bitcoin, Ethereum, and other digital assets.

2. Bison App: Bison App is a mobile trading platform that allows users to easily trade cryptocurrencies such as Bitcoin, Ethereum, and Litecoin. It offers a simple and intuitive interface for beginners and experienced traders alike.

3. Coinmerce: Coinmerce is a cryptocurrency exchange platform that allows users to buy, sell, and trade a wide range of digital assets. They offer competitive fees and a variety of payment options for users in Dresden.

4. Bitpanda: Bitpanda is a popular cryptocurrency trading platform that offers a wide range of digital assets for trading. Users can buy, sell, and trade cryptocurrencies using various payment methods, including bank transfers and credit cards.

5. Binance: Binance is one of the largest cryptocurrency exchanges in the world, offering a wide range of trading pairs and advanced trading features. Users in Dresden can access Binance's platform to trade cryptocurrencies with low fees and high liquidity.

These are just a few of the cryptocurrency trading platforms available in Dresden. It is important to research each platform thoroughly before making any trades to ensure that it meets your trading needs and preferences.