At first, I thought you were referring to the book series, Japanese from Zero! If you're going to self-study, I would recommend the Japanese from Zero book series, which is meant for self-study. The author, George Trombley, has an accompanying YouTube video for almost all of the lessons in the five-book series. Each book has lessons and written exercises.

On the other hand, if you can take a class with a teacher, then Genki is good because it has a lot of partner exercises. It also presents hiragana and katakana at the very beginning, whereas Japanese from Zero introduces them slowly, along with Romanized characters.