Need GUARANTEED no 1 ranking google for magento 2 site

We need our website ranked for similar or same keywords as No1 page google GUARANTEED:

custom phone case maker
custom phone
custom wallet phone case
custom clear phone case
custom wood phone case
custom phone covers
custom android phone cases

Our website is www.bossustore.com

We already have onpage SEO done we just need offpage to help push us to the first page:

We need:
-CTR improved
- Strong DA Backlinks
- Good quora or reddit or forum posting
- Social signals improvement
- Anything else, and needs to be white hat