One good option is Surfer, an SEO tool used by more than 150,000 content creators, SEOs and teams. Surfer can automate the entire content creation process from research to publication, with features like auto-optimization, internal linking, and real-time feedback on on-page optimization. It can handle multilanguage content and integrates with tools like Google Docs, WordPress and Contentful, so it's useful for a wide range of people.
Another option is Outranking, an all-in-one SEO content suite that spans the entire content creation process from planning to publishing. Outranking uses AI to boost content ranking potential and has features like real-time SEO content analysis, personalized SEO content generation and automated interlinking. It integrates with Google Docs and other tools, so it's good for optimizing lots of website content.
If you want a more complete SEO content workflow, you might like WriterZen. It automates content creation from research to writing, with features like Topic Discovery, Keyword Explorer and an AI-Assistant for original content creation. It also has a Team Function for content and team management, so it's good for writers who work alone or in groups.