The decision to hold digital currencies depends on your strategy and personal goals. But some of the currencies that have established themselves in the market and positive technical developments and are known as popular currencies for holding are:
1. **Bitcoin:** As the first and largest digital currency, Bitcoin is attractive as a tool to store value and increase capital.
2. **Ethereum:** Due to the ability to execute smart contracts, Ethereum has been considered as a platform for developing blockchain applications.
3. **Binance Coin (BNB):** This currency belongs to the Binance exchange and has a place in the field of discounts and use in the Binance ecosystem.
Each digital currency has its own risks and opportunities, so it is recommended that you do thorough research and observe the market carefully before making any decision. Also, it will be useful to pay attention to the diversification of the capital portfolio and risk management in your decisions.