Tell HN is not a good tag for such submissions, the right thing is just not trying to gussy up your submissions - a cornerstone principle of HN. Everything posted to HN is someone telling or showing something, the tags are highly specialized. If unsure, just don't use the tags.
One does not necessarily tag such submissions. A link to the page with the title unedited (edited iff the title is inadequate or is a clickbiat), is more than enough.
If you must tag such submissions, Tell HN seems the best suited.
See also: https://news.ycombinator.com/newsguidelines.html