How to do a KW research for a company which has literally no traffic?

I am looking for assistance in developing a successful content strategy for my SEO client using SEMRUSH. I am unsure about the number of blogs I should produce to attract clients through her website.

Starting with no traffic is normal; everyone begins there. Use SEMrush to analyze competitors’ keywords and target low-competition, high-intent keywords. Begin with 10-15 quality blog posts focusing on those keywords.