Deutsche Welle
-https://www.dw.com/en/learn-german/german-courses/s-2547
https://www.deutsch-lernen.com/
Dict.cc: Free, English-German online dictionary. You can also download offline version here
DUDEN: A German-German dictionary. Contains links to audio snippets of the “Aussprachedatenbank der ARD” for correct pronunciations
Bildwörterbuch: Learn dictionary words with images
Deutschegrammatik20: Grammar exercises
https://deutschegrammatik20.de/grammatikubungen-zu-aktuellen-themen/
Schubert Grammar: A ton of grammar and vocabulary exercises
https://www.aufgaben.schubert-verlag.de/
Lingolia: Grammar explanations and exercises
https://deutsch.lingolia.com/de/grammatik