The best currencies to invest in depend on several factors such as financial risk, investment strategy, and investment goals. Here are three cryptocurrencies that are good choices:

Popular cryptocurrencies

1. Bitcoin (BTC): Bitcoin is the most popular and stable cryptocurrency, with a large market cap.

2. Ethereum (ETH): Ethereum is a blockchain technology platform that offers advanced services, such as smart contracts and application development.

3. Benjamin (BNB): Benjamin is a digital currency on the Binance platform, used to purchase goods and services and make trades.

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Promising cryptocurrencies $

1. Polkadot (DOT): A blockchain platform that provides advanced services for application development and cross-network communication.

2. Cardano (ADA): A blockchain platform that provides advanced services for application development and inter-network communication.

3. Solana (SOL): A blockchain platform that provides advanced services for application development and inter-network communication.

Conditions for successful investment

1. Research and Analysis: Research the cryptocurrency well before investing.

2. Diversify investments: Diversify your investments to improve financial distribution.

3. Consultation: Consult a financial expert before making a decision.

4. Prepare for loss: Prepare for possible loss.

5. Market monitoring: Continuously monitoring the market.

Sources

1. CoinMarketCap

2. CryptoSlate

3. WalletInvestor

4. CoinDesk

Please note that investing in cryptocurrencies carries financial risks, and careful research and analysis should be done before making a decision.