Submit portable freeware that you find here. It helps if you include information like description, extraction instruction, Unicode support, whether it writes to the registry, and so on.
Don't really know if there are other tools for the same effect, but Baka Tagger functionality seems new to me.
Baka Tagger is a single executable that apparently doesn't save any settings. It also failed to work with some of the files I threw at it (I suspect trouble with symbolic links and junctions; either that, or a shortcoming deriving from the specific temp folder it uses -- see homepage for info). But overall, an interesting addition to the media collector toolset.
Incidentally, the same dev(s) have released Baka Encoder...
Baka Encoder is a self-contained x264, x265 and NeroAAC frontend dedicated for producing final encodings of video materials. Handles AviSynth scripts, video/audio without compression and video compressed with common intermediate codecs. Presets are defined via xml config with direct control over x264, x265 and NeroAAC command line parameters. This tool was developed mostly as a replacement for MeGUI to be less cluttered, more flexible and providing better quality. This software is free for non-commercial usage.