Query to list all blocks in current page which are references once or more

Maybe you mean this, which is for blocks that are referenced within the current page:

#+BEGIN_QUERY
{:query [:find (pull ?other [*])
   :in $ ?current
   :where
     [?p :block/name ?current]
     [?b :block/page ?p]
     [?b :block/refs ?other]
 ]
 :inputs [:current-page]
}
#+END_QUERY
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