There are some high-risk speculative investment methods in the real estate market. You can consider the following: 1. **Renovation property**: Buying old houses, improving their value through renovation, and then selling them at a higher price. This method requires a deep understanding of the market and the ability to effectively control costs and construction time. 2. **Short-term rental**: Buying properties for short-term rental (such as Airbnb) can generate high returns during the tourist season. However, this also means dealing with high vacancy rate risks and management costs, as well as changes in local regulations. 3. **Land investment**: Buying undeveloped land and waiting for future appreciation before selling it. This investment depends on market trends, and the risk is that the land may not appreciate for a long time. 4. **Real Estate Investment Trusts (REITs)**: Investing in REITs is generally relatively low-risk, but there are also high-risk REITs that focus on specific markets (such as commercial real estate, hotels, etc.) or use high leverage. 5. **Auction property**: Buying properties through auctions, the price is usually below market price, but auction properties have risks such as unclear legal and physical conditions. 6. **Investment in real estate equity crowdfunding platforms**: Investing in real estate projects through crowdfunding platforms usually requires less capital investment, but may face the risk of project failure. 7. **Commercial real estate investment**: Investing in commercial real estate (such as office buildings, shopping malls), although the return potential is high, market fluctuations and changes in economic cycles may bring greater risks. It should be noted that any high-risk investment requires detailed market research and risk assessment, and it is recommended to consult a professional financial advisor before investing. At the same time, please ensure that you have sufficient capital and liquidity to cope with potential losses.