Keyword-o-Matic
A free bulk keyword research tool for SEO's, PR's, copywriters and Digital Creatives, enabling you to quickly discover users needs and content opportunities at scale. Put in a list of source keywords, and it can find related terms, questions and prepositions. Hit Go, and see a ton of useful related keywords to each topic in your list!
Think of it as an bulk Answer The Public / Ubersuggest alternative tool.