Website SEO and AMP enhancement - Wordpress

Hi, I have a website that needs to be checked and updated to make sure I am in the best position to rank on google. I have an established retail news site, registered with google news so need this to be taken into consideration. I have also received AMP warnings from Google. I want to make sure my articles have the best chance of being seen. I use the Newspaper Theme on the site. My website is www.365retail.co.uk