app-admin/
testdisk

Checks and undeletes partitions + PhotoRec, signature based recovery tool

https://www.cgsecurity.org/wiki/TestDisk

There are no pull requests

You think something is missing here?
Start with filling a new pull requests.

If you also like to help the Gentoo project, you can consider sending a Pull Request via GitHub.
Before doing so, you might want to take a look at the wiki page.