If you're looking for a GrammarBot alternative, LanguageTool is a good option. It has a lot of features, including grammar checking, tone suggestions, and paraphrasing. It supports more than 30 languages and dialects, and it has plugins for many writing tools and websites. The premium version has more advanced grammar and punctuation checks, as well as the ability to set your own style guide.
Another good option is Wordvice AI, which has a range of tools including AI Proofreader, AI Paraphraser, AI Translator and AI Summarizer. It's geared for researchers, students and content writers who want to improve the quality and speed of their writing. Wordvice AI offers a variety of subscription options and has some premium services like expert proofreading and MS Word plugins.
Writetone is another option, with tools like paraphrasing, grammar checking and text-to-voice conversion. It also has tools like HumanGPT to make AI-sounding writing more human-sounding, and Co-Writer for brainstorming and editing. Writetone is available as a Chrome extension and with MS Word integration, so you can use it in a variety of situations.
Last, if you're writing academically, you might want to try Paperpal. It has language suggestions that are context-aware, plagiarism detection, and high-quality academic translations of more than 25 languages. Paperpal is easy to use and integrates with MS Word, so it can be a good option to improve the language, grammar and clarity of academic writing.