Grammarian PRO3 - Grammarian PRO3 is a feature-rich grammar checker that enables you to write better content without taking assistance from the English teacher.
Grammatica - AI powered writing assistant
Gramlee.com - Online grammar check, proofreading and copy editing services.
InstaText - AI-based editing tool that helps you improve your text
LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.
Writecream - An A.I-powered app for generating blog articles, YouTube videos & podcasts in seconds—using just a product name and description; in addition, you can also use Writecream to generate personalized compliments for cold emails and LinkedIn sales