Question: I need a tool that can generate hundreds of long-tail keywords quickly and filter them for relevance.

If you're looking for a tool to generate hundreds of long-tail keywords and filter them for relevance, Keyword Insights is a great choice. This AI-powered content marketing tool can help users generate and cluster keywords, map search intent, and create detailed content briefs. It includes tools for keyword discovery, keyword clustering, search intent analysis, and content brief creation, so it's great for content marketers and SEO pros.

Another good option is Nichely, which uses AI to traverse and link millions of topics across different niches. You can drill down to subtopics, create broad topic clusters, and find long-tail keywords. With tools for topic discovery, keyword research, and volume and competition data, Nichely is great for content creators and businesspeople who want to build strong topical clusters and maps.

For a more general-purpose keyword research tool, check out seospark. The tool can find longtail and semantically related keywords, identify ranked keywords, and help you understand content gaps and cannibalization. With access to a large database of SEO data, seospark works in multiple languages and countries, and lets you export data in various ways.

Last, Scalenut is another all-purpose AI-powered SEO and content marketing tool that can handle keyword planning, NLP key terms, competition research, and real-time SEO score auditing. It can also provide detailed analytics and SEO-optimized content creation, so it's good for SEO strategists, content creators and agencies that want to improve their content strategy and website ranking.