"Attracting" reviewers

As a writer, a mere storyteller, I find that my skills in self-promotion and marketing strategies are close to zero.
I somehow refuse to recognize the importance of these factors, stuck in a romantic, probably outdated idea of reaching the reading world with more traditional methods: a literary agent and or Publishing houses–the dream of all writers!
One day, some of those might find my manuscript exciting enough and of high-concept, regardless of whether and how many fans and subscribers I have on social networks.
My primary concern is enhancing my writing craft rather than seeking positive reviews from “beta readers” and alleged “Author promoters” offering “Amazon keyword optimization” and other services, pretending that they have read your work and can boost it through their alleged “review-driven book clubs” of 2000 eager readers!