It's the most difficult part. In my experience paid ads do not work very well so I am not relying too much on those. I usually use social media with UGC videos created either by me or by content creators. I also reach out on Instagram, even dating apps, to users and pay them to use/promote a product.

Recently I started to use n8n automation to post on Twitter/LinkedIn, however I tend to keep those posts short since they are created with LLM's and do not seem authentic.

As for the SEO part, I usually upload search console extracts into Perplexity deep research and ask for actions on how to improve ranking for different keywords.