A few months ago, yours truly alongside Pete Soderling (Data Council, Data Community Fund) and Abe Gong (Great Expectations, Superconductive) released a blog post on 25 new data tools and platforms, highlighting specifically what each tool DOES and DOES NOT do. To continue our effort to clarify the data science and analytics engineering ecosystem, we have released a follow-up post highlighting 21 more tools. The goal of this effort is to enable tool builders to collaborate more effectively and practitioners to make informed decisions when designing their data stacks.