Site Audit by Ahrefs - Cloud based website analysis for 100+ SEO issues
SEOmator - SEO website analysis & audit tool
Monaeo Personal - Prevent & win residency audits
Whatsmyserp - Powerful Rank & Serp Tracking. Completely Free.
SEOtooList - Find the best SEO tool for the right job (community curated)
Seolyzer - Seolyzer is the ultimate SEO tool that provides you with all the information you need to improve your website’s health and performance.