English with Netflix?

I plan to improve my English and therefore watch Netflix in English. But wanted to ask what is correct.

English language and subtitle also or English language and German subtitle. What is the best?

English language & subtitles in the same language! Is very helpful over time.

I can only recommend using English subtitles so you can combine the written with the spoken. Also makes it easier to look up individual words

Depends on how good your English is. At the very beginning, then with German subtitles. If you just don't understand the pronunciation sometimes, then with English.