There are a number of instances where the 2nd person singular pronominal suffix (ך ) contains a dagesh. Is there a way to search for the dagesh - for ex Gen 12.1
Gen. 12:1 אַרְאֶךָּ׃
https://wiki.logos.com/New_Search_Matching_Commands will show you how.
that showed how to search for digesh; but not for the specific digesh in a final suffixed kaph
You have to specify a word e.g. from Gen 12:1, the query would be match.dagesh:hebrew:אַרְאֶךָּ INTERSECTS morph.h:RS2?S