First tip, be very very careful. You're already treading dangerous ground by equating the Shekinah to any presence whatsoever outside of the innermost chamber of Kabbalistic Judaism.
Take a step back and look at, firstly, the numerous commentaries on the mystical aspects/kavanot (intentions) of the Shema prayer. For a list of these, go ask the Rabbi Ari app. I don't want to be in violation of the rules here for listing Hebrew titles. Use Chat gpt as a good translator. However, as a primary example, there is a Gate (section) specifically dedicated to this very thing in Chaim Vital's Tree of Life. It is available, untranslated, on Hebrewbooks (.com) Open it with Drive, then cut and paste small potions to Chat gpt and ask it to translate to English.
For a comprehensive, scholarly, but accessible treatment of the subject, The Hebrew Goddess by Raphael Patai is the best source.
For a practical guide to a very well-known practice for Friday midnights, get ahold of The Sweetest Hour by Avrohom Greenbaum. It is the only translation of Tikkun Chatzot (The Midnight Lament) available. This practice directly addresses the Shekinah as both Sabbath Queen and Bride-in-exile (symbolized by Rachael and Leah, respectively).
If you absolutely insist upon walking the razor's edge between the Shekinah and (heaven forfend) the mysticism of Aleister Crowley, most all of Soror Syrinx's body of work touches upon it. I recommend "X-Vasa" first, inasmuch as it is a basic but insightful look at the 50 Gates of Understanding from the perspective you seek.
Lastly, the kavanot recited prior to the Shema prayer (and most others) by thne Kabbalists is a direct reference to the unity of HaShem and the Shekinah : "For the sake of the unification of The Holy One, blessed be He, and his Shekinah...(etc.)" This, it could convincingly be argued, absolutely does constitute prayer thereunto.
Again, what you are seeking is, quite literally, the Sanctum Sanctorum. Keep that in mind as you progress. It is, for instance, entirely irrelevant whether or not you believe that fire burns. Such a position only temporarily delays the preliminary sensations of immanent incineration.
Upon request, I will upload The Hebrew Goddess and The Sweetest Hour. With the direct consent of
@HoldAll I will add the complete text (untranslated) of Chaim Vital's "Tree of Life" to the .zip file.