How to guide content writer for category page SEO content

Hello, im looking to hire a content writer. But im not sure how to easily guide them to include certain lsi keywords. which keywords to mention in the content and how many times to mention them. Im personally not an SEO, but semrush used to guide me on how many times I should put x keyword. They used the top 5 sites for the kw to determine the amount of keywords and which ones to inlcude in the content.

So do you guys easily tell the writer how to do it? or do you just take what they write and tweak it yourselves?