I use ProWritingAid to analyse everything I write. It checks spelling and grammar. It has a built-in word explorer and contextual thesaurus to help you find the perfect word. It’ll advise you on overused words, sentence length, writing style, etc. It integrates with Windows, Mac OS, Microsoft Word, and Google Docs and even has a Google Chrome extension.
It also integrates with Scrivener, the software I use to write all my content. Scrivener provides a distraction-free writing platform, and ProWritingAid improves my writing. It’s the perfect combo!