Identify subniches and keywords within my niche

I am looking for someone to help me identify subniches and keywords within my niche of matrescense and related services. My main goal is to target a specific audience and improve SEO. I am open to suggestions for subniches, and will need your help identifying them.

Ideal skills and experience:
- Experience with keyword research and SEO optimization
- Familiarity with the matrescense industry
- Ability to identify and suggest subniches within a broader niche
- Strong communication skills to collaborate on identifying and refining subniches and keywords