SEO Copy Optimization and Edit

I need someone well versed in SEO to go over and edit copy. You'd be:

Running the copy through SEMRush to make sure we get the best copy possible for chosen keyword.
Running the copy through Grammarly to make sure there are no spelling/grammar errors.
Sometimes posting as a draft in a Wordpress site. (Later)

If I'm happy with the work, this can be an ongoing task.

Ideally a GREAT writer to add to the copy if needed.

Thanks!