I liked this:

https://www.japanese-like-a-breeze.com/guide-for-beginners/

I modified the card templates though. I can’t remember what the default was, but it was nice fore a week

It starts simple and it’s all from anime. Their more advanced decks are paid for but this beginner deck follows most of the grammar points in “A Japanese guide to Japanese grammar” by Tae Kim:

https://www.open-of-course.org/courses/file.php/62/index.html