Monthly SEO for a new UK based business website in Healthcare niche

I have a new website, under 1 years old.
it has
Moz Authority: 10
Moz Page Authority: 13
Total Backlinks: 27
SEO Score: 39%
Spam Score 17%

So we need to build backlink, improve SEO score, and increase its ranking on search engines esp Google Search.

The niche is in healthcare, in particular upper limb injuries and limb reconstruction, for example hand, elbow and shoulder injury treatment and surgeries.

Target audience is Scotland however we understand this may limit reach or be limited so we can target UK audience. So SEO needs to revolve around this,

We want someone who has good SEO knowledge of increasing and maintaining site ranking. Someone who can offer advice on on-site SEO improvements.

Ideally we want to purchase ongoing monthly SEO, so your bid needs to cater this in, if happy with your service we will buy again next month etc.. Your bid is for one months SEO work.

You must outline what you can offer and the price, along with why we should choose your service.