[jo_]

For what kind of tagging are you looking? Per-image labels? Single-tag-per-image? Image rectangles?

Most of the tagging programs I've encountered really aren't that awesome. For such a relatively common task (for ML, at least), there are few, if any, really good pieces of workflow software out there.

I'll forward you to the list of annotation software on Wikipedia because, as I recall, at least one of them supports machine-assist. https://en.m.wikipedia.org/wiki/List_of_manual_image_annotat...

When I'm back on my home machine I can check which one it is.