Minna no Nihongo is widely used in Japanese language schools. It's very immersive, but that also makes it challenging for absolute beginners who aren't yet comfortable with Japanese script. NIHONGO Fun & Easy is the more accessible and friendly option for nervous beginners.
If you are looking for a straightforward, engaging approach to starting your Japanese language journey, the series is an excellent resource, and a PDF version is often the preferred choice for modern, on-the-go learners [1, 2]. What is "Nihongo Fun and Easy"? nihongo fun and easy pdf