Fix what nearly works already
Search Console lists them: queries where a page averages positions 8 to 15 with real impressions. Each is a page Google already considers relevant and merely ranks below better answers. The pass is systematic, align title and headings to the actual query, close the depth gap against page-one results, cover the subtopics and entities the current version omits, add internal links from your strongest relevant pages, and make the conversion path obvious. Cheap, fast, repeatable, and the first thing we do on nearly every engagement.