Investing in any project is risky, so be especially cautious when pursuing high returns. If you are looking for some relatively hidden ways to invest your money, you can consider the following aspects, but be sure to do sufficient research and due diligence: 1. **Startup investment**: Consider investing in startups, especially those in fast-growing industries. This type of investment usually requires a higher risk tolerance, but if successful, the returns can be very considerable. 2. **Equity crowdfunding**: Through some equity crowdfunding platforms, you can invest in emerging companies with smaller amounts. This method is relatively hidden, but you should also pay attention to the legality and potential risks of the project. 3. **Private equity funds**: Some private equity funds focus on high-risk and high-return investment projects. Although this method generally requires a higher investment threshold, it is suitable for investors seeking higher returns. 4. **Real estate investment**: Consider some less conspicuous real estate projects, such as commercial properties, renovation projects, or vacant properties in the rental market. These projects can get higher returns after increasing their value. 5. **Cryptocurrency and blockchain projects**: Despite the higher risks, the development potential of cryptocurrencies and related technologies is huge. Participating in some new blockchain projects, especially in their early stages, may bring high returns. 6. **Artworks and collectibles**: Investing in artworks, collectibles or other valuable items may also bring unexpected returns. This requires a certain understanding of the art market and the ability to identify potential investment targets. 7. **Online investment**: Some online platforms provide peer-to-peer lending, investment projects, etc. Choosing the right platform and project can get better returns. Please be aware that more hidden investment methods are often accompanied by higher risks. Before investing, you must conduct in-depth investigation and evaluation to ensure the safety and compliance of funds. At the same time, it is recommended to consult a professional financial advisor to obtain professional advice.