I’m a big fan of DeepL for translations. Before trying to write more blog posts directly in English to improve my skills, I wrote many blog posts in German and then translated them. The texts were probably better than my non-native English.
Now DeepL has another tool, DeepL Write. It’s still an “alpha” version, but I’m trying it as I write this text. It checks grammar, spelling and words in general and automatically corrects them so you can just copy the corrected text. It’s pretty cool. Maybe it’s similar to Grammarly, which I’ve never tried because it’s so expensive and doesn’t support German.
At the moment, Write is available for English (American or British English) and German. Unfortunately I haven’t found any announcement or anything.