Similar projects:
Trending repositories on GitHub today https://github.com/trending
OpenHub (aka Ohloh, Koders, Black Duck) has a Hotness score: https://openhub.net/explore/projects
But then you need a matrix for other attributes, too
"Black Duck Open Hub - About the Ohloh Hotness Score" aka PAI "Project Activity Indictor" https://community.blackduck.com/s/article/Black-Duck-Open-Hu...
Repology (open source) and pkgs.org track which OS distro package repositories have packaged which version of which package, but does not have trending reports. For example, "rust package versions - Repology" https://repology.org/project/rust/versions
Libraries.io has trending and "Most Depended upon" (given a dependency model of packages) per Platform, Language, License. For example, https://libraries.io/languages/Rust
GitHub Dependency Graph; "Exploring the dependencies of a repository - GitHub Docs" https://docs.github.com/en/code-security/how-tos/secure-your... :
> You can use the [GitHub search] keywords `ecosystem:` to show only packages of a certain type, or `relationship:` to show only direct or transitive dependencies (if the ecosystem supports transitivity).
OSS-Fuzz runs CloudFuzz/CloudFuzzLite for many open source repos and feeds OSV OpenSSF Vulnerability Format: https://github.com/google/osv#current-data-sources