Choosing the right data quality monitoring solution is crucial for maintaining high-quality data. An ideal monitoring solution should be self-service, dynamic, collaborative, holistic, automatable, privacy-preserving, and change-aware. Several open source and SaaS data quality monitoring tools are available in the market, including whylogs, Pandera, Great Expectations (GE), Deequ, WhyLabs, Metaplane, Monte Carlo, Soda Cloud, and Databand. When deciding whether to build or buy a data quality monitoring tool, consider factors such as business requirements, technical requirements, organization size, and implementation timeline.