If you want to protect and increase the profitability of your investments you should think about diversification. Here are my personal top 5 cryptocurrencies for long-term investments:
- Bitcoin - no matter what happens, the "digital gold" will remain wanted.
- Cardano - new smart contract platform made by Ethereum co-founder. Might become big in future.
- Ethereum - open-source, blockchain-based distributed platform with a built-in computing functionality. Smart contracts are so much innovative.
- IOTA - blockchain-less technology for the IoT industry.
- Monero - unlike Bitcoin, transactions in the Monero network are anonymous.
The more altcoins you have in your portfolio, the more flexible it is. However, you need to be able to control the holding. If you are a beginner, it may be difficult to follow more than 3-5 projects.