Give it for free to a few users. Is your product really great? They will share it loudly. You'll have a base of hardcore users recommending it. Reach out to influencers, tech editors in your niche.
Your reply is basically text book marketing thinking, which is very different from how things work in reality. Influencers require to be paid, and a one time short clip can easily be a 5 or 6 figure investment. Press doesn't cover you either unless you are willing to commit to ad spend. In any user community, only a small % of people will actively participate and promote your product for you for free.
Alright, can you share your website so I can see if it is good?
You see? Your product sucks
Your homepage is a 404, so maybe you should fix that first.
I can't share my website under this account for a variety of reasons.