The comparison of self-hosted tools for SQL-to-SQL data replication, including Meltano, Airbyte, dlt, Sling, and PyAirbyte, highlights their strengths and weaknesses in terms of speed, ease of use, and performance. The benchmarking exercise used the TPC-H dataset and evaluated each tool's configuration, execution speed, and user experience. The results show that dlt outperforms other tools by a significant margin, while Sling offers a lightweight and efficient solution. Airbyte and Meltano provide reliable performance but may require more resources or be better suited for less time-sensitive data. PyAirbyte encounters challenges due to limited documentation and support for certain data sources. The conclusion emphasizes the importance of choosing the right tool based on specific use cases and requirements.