It seems like there's no tag for the 三つ指 pose, where someone sits in the seiza position and places their fingers (often not including their thumbs or palms) on the floor in front of their knees, but does not touch their head to the floor. For reference: https://www.google.com/search?q=三つ指&udm=2
I think it'd be worth making this tag, since seiza is very vague, dogeza is both a different pose and has different cultural connotations, and there doesn't seem to be a good way to search for it with multiple tags. I made https://danbooru.donmai.us/posts?tags=favgroup%3A44424 to show some examples.
However, Googling the romanized "mitsuyubi" gives basically no results relevant to the pose. If you know just a tiny bit of Japanese you should be able to guess what the original term is, but it'd probably be confusing to a lot of people. How should this be handled?