Most missing. - Quarry

SQL

USE enwiki_p;  -- articles from EN with most langlinks...

SELECT 
    count(*) ll_count, 
    page_title title_en,
    (select ll_title from langlinks where ll_from = page_id and ll_lang = 'zh') title_zh,
    (select pp_value from page_props where pp_page = page_id and pp_propname = 'wikibase_item') wb_item
  FROM
    page, langlinks
  WHERE
    ll_from = page_id and
    (select count(*) from langlinks where ll_from = page_id) >= 65 and
      -- attempt to limit number of intermediate rows to fetch and sort
    page_id not in (select ll_from from langlinks where ll_lang = 'wuu') and
      -- ... missing from SK (no direct iw equivalent there)
    page_namespace = 0
  GROUP BY
    page_id
  ORDER BY 
    ll_count desc, page_title
  LIMIT
    1800;  -- top N
SQL

Checking query status...
