There are lots of questions here about dealing with misspelled tags, yet none if them seem to offer a general non-moderator solution.
Recently, I noticed a new tag "quicksrot", which is obviously a misspelling of "quicksort", yet I was unable to delete, or request a deletion, of the new tag.
The closest similar action is to suggest a synonym, but as i lacked the reputation in the proper tag, i couldnt even do that. in any case, it is not a synonym; it is a misspelling.
The feature request is:
Offer a special action of "This is a misplacing of an existing tag" and the user (non-moderator) specifies which tag is the correctly spelled equivalent.
The suggestion is handled similarly to other edits regarding approval. Once approved, the misspelled tag is deleted and all usages replaced by the correct tag.
There could be additional prerequisites such as if the number of usages exceeds some threshold, it is also reviwed by a moderator before the corrective action is performed.