Ahrefs Webmaster Tools - Optimise your website and get more traffic from Google.
Website Speed Ranker - Compare how fast your website loads vs your competitors
Treo Site Speed - Find out how fast your website is for real users
Textalyzer - Analyze text readability and SEO parameters
Sitechecker - All-in-one SEO platform including rank tracker, website SEO audit tool and website changes monitoring. Detailed reports by 100+ parameters with how-to-fix guides.
SanityCheck - Get the exact data you need from Google Search Console.