Participating in high-risk, high-return investment projects requires careful consideration, as these projects are usually accompanied by high uncertainty and risk of loss. Here are a few possible options, but before investing, make sure you have a full understanding of the relevant areas and consider seeking advice from a financial advisor: 1. **Investing in individual stocks in the stock market**: Especially growth stocks and emerging market stocks. Although the risk is higher, they have the potential to bring considerable returns. 2. **Cryptocurrency**: The cryptocurrency market is highly volatile, such as Bitcoin, Ethereum or other emerging tokens. However, the market is extremely volatile and caution is required. 3. **Start-up investment**: Invest in promising emerging companies through angel investment or participation in crowdfunding platforms. Successful early-stage investments may bring high returns, but the risk of failure is also high. 4. **Real Estate Investment Trusts (REITs)**: Certain REITs, especially speculative real estate investments in volatile markets, may bring high returns, but also have corresponding risks. 5. **Options and futures**: These financial derivatives can be used for speculative purposes and have high potential returns, but can also result in significant losses. 6. Hedge Funds and Private Equity: These are usually open to professional investors and can be considered if you qualify. These funds will generally seek higher returns but at a higher risk. Always do detailed research and risk assessment before choosing any investment and only invest money you can afford to lose. Diversifying your portfolio is also an important strategy for managing risk.