What may I refer to to learn where to locate verses or sections in the Tanach by topic? Preferably one of our own sources rather than a Christian one because the interpretations of the Tanach need to be Jewish.
Besides the handy suggestions in the comments namely Stone Chumash-Index and Living Torah-Index and -TOC..
..maybe consider a Concordance?
Some concordances are listed here https://jewishencyclopedia.com/articles/4584-concordance
Also Jastrow's dictionary has a good amount of Tanakh citations