I'd like to offer a recommendation for a website I recently found called HayaiLearn. It shares similarities with LanguageReactor, which I've previously utilized. However, what sets it apart for me is the superior quality of its translations. I also appreciate that the flashcard examples are directly sourced from YouTube. You can simply click 'play' next to a sentence to hear the exact timestamp of the dialogue. I'm interested in hearing about others' experiences with this platform.