SEO - Using both on-page and off-page SEO

I'm looking for an expert in SEO who can help me improve the visibility of my website and increase the rankings of my website on search engines. Currently, my website is receiving low traffic and I don't have any specific keywords to target. This is why I am looking for someone who can come up with relevant keywords and implement both on-page and off-page SEO strategies to help me reach my goal of improving the search engine rankings for my website. I am looking for someone who has extensive experience and knowledge in this field who is able to bring results.
We are a medical spa with offices in Houston and Atlanta. and need help with below tasks
Contextual link building
Remove bad/spammy links
Create foundation backlinks
On page & Off page SEO Optimization