Rocket seems to be the best I've seen with audio and pronunciation practice. While competitors (which I also use) focus on vocab and visual learning, Rocket actually tells you the rules, what every detail and nuance is, and what and why it is that way, which makes remember how to use those vocab words much more useful. I wish there was more visual learning included, but it's been not too big of an issue for me.
Response from Rocket Languages
Thanks for the feedback, Nicholas! It's great to hear you're enjoying Rocket Japanese's comprehensiveness. Thanks for being a part of our community of language learners!