You need to add fresh, unique and information content on your website. User interaction or navigation should be good on your website. Then start search engine optimization for your website.

Well the truth is for setting up an authority site you need really good content.

I believe you can do how much SEO you like and have as many backlinks you like but without content that ads real value you will never become an Authority site.

My strategy is to look at what the competion is doing (on the first page of google, we are always aiming for the top) and one up them. You read an article of the competion and you say to yourself: well they did not mention that thing that would be usefull..

YOU write that thing that would be usefull!

The competition has a really good pillar article; YOU one up them and make a how to video on the same argument, that's better! (sometimes arguments run out for niches so you have to make the best out of each and every one of them).

Anyway for an authority website the first thing to aim at is the content, in my opinion.

Cheers with your projects.

Here is something you may be interested in: Authority Site Model

Hello there!
First thing that you must know is that you can't become an authority immediately after you established your website. It may take months to be able to achieve that goal. However, you can decrease your waiting time by focusing on the quality of your website. Invest on good contents equipped with the right amount of keywords. Make sure you have regular contents too. Keep updating your website.
Regards