Scripts that wrap fedpkg
fedpkg interacts with only one package, whereas the reality is many maintainers work with multiple RPMs, often with inter-build dependencies, from potentially multiple source code locations.
This page is attempting to gather together lists of scripts and tools which edit spec files programmatically and are layered on top of fedpkg/koji.
Hopefully, you will find one of these tools useful. However, the author of this page has as a real motivation arguing that the underlying infrastructure should support some of this directly.
Probably the most advanced layered tool;
Interacts with upstream git + Bugzilla, generates spec file data.
Syncs from GNOME ftp via tarballs. Builds many packages. Also has code for interacting with COPR.