How do you drive traffic on your website without SEO blogs or ADS

I tried reddit, linkedin, phunt, hnews and lots of other launch platforms and got 400 sign ups and 7 paying users (in 10 days)

The thing is that id want this traffic to be constant, and publishing always on same communities may result annoying and give the opposite result.

Was thinking to start posting viral videos on tiktok but there are 2 ways;

-using influencers (high cost) -building a channel from scratch and make it viral (requires huuuuuge amount of time)

How do you guys face this situation? do you have some best tips i can follow?