Question: I need a tool that can check grammar and suggest improvements in multiple languages, can you recommend one?

If you want a grammar checker that can handle multiple languages and suggest improvements, LanguageTool is a top contender. It supports more than 30 languages and language variations and has a range of features, including grammar checking, paraphrasing and tone suggestions. It also can be extended with plugins and extensions to reach more writing tools and websites, and it's good for individuals and teams.

Another strong contender is Grammarly, which offers personalized writing advice and text generation to help you write more efficiently and accurately. It works with multiple languages and offers features like contextual suggestions, plagiarism detection and style guide support. Grammarly is available on all platforms and offers a range of subscription tiers from free to enterprise.

WProofreader is also a strong option, particularly if you need support for more than 20 languages. It offers multilingual sentence checking, AI paraphrasing and strong security controls. Its flexibility in terms of deployment options and customization abilities means it can be used in email, documents and content management systems.

Last, QuillBot is a powerful AI-based writing assistance platform that includes grammar checking, paraphrasing, plagiarism detection and translation. It's designed to help you improve your writing quality and can be integrated into many apps and websites, making it a good option for writers of all skill levels.