Suppose I want to find individuals who rank high in answering questions with certain tags. How would I frame the search query and where do I enter it?
There is no specific search query for this in the StackExchange user interface. However, to find what you're looking for, you can visit:
where you specify
<tag>. Alternatively, follow
Hover of the tag of interest and select "Top users":
Resulting screen highlights a number of statistics associated with the tag, including the top askers and answerers:
Technically you don't have to do this from the tags window. You could hover over any tag you're interested in, and it will display the fly-out.