You can get Microsoft Editor in the Chrome Web Store for free. It does require you to login to the extension with a Microsoft account (MSA). After that it doesn't nag you anymore.
You get a couple of choices of what you want to enable and whether it is active on a particular web page.
Then as you're creating text, it watches your input and makes suggestions with a blue underlining.
Hover over the underlined word and you'll get a pop-up with hints. Click on the pop-up to accept the suggestion.
Just incidentally, that example was of capitalization in the subject of an e-mail. Microsoft Editor treated it like a title. I have a favorite tool for checking capitalization of titles. It looks like the New York Times could use that tool.
And while I'm off topic into writing tools, check out the Hemingway Editor.