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The movie “Your Name” is a master piece https://www.amazon.com/Your-Name-Makoto-Shinkai/dp/B078SNJK8G
It's not a season, it's a film. Apparently you can watch it on Amazon.
It says Your Name has English subtitles on Amazon. I think you can buy it. https://www.amazon.com/Your-Name-Makoto-Shinkai/dp/B078SNJK8G
Link to Amazon sale
I'm not aware of any streaming services that are offering the film yet.
Since you've asked to keep it legal, it looks like you can 'Rent' it from either Amazon Prime Video or YouTube Movies (rental fees apply). This is in the US; availability may differ if you're in another country.
Anohana: The Flower We Saw On That Day
This is a Slice of Life/Magical Realism story about a group of childhood friends reconnecting and getting closure years after one of the group dies in a tragic accident resulting in the group shattering. This is an incredibly bittersweet story that I believe many people could relate to, especially if you experienced loss at a young age. To this day I can't hear the first couple notes of the ending theme without emotions welling up. It's available on Netflix, so many will have easy access to it : https://www.netflix.com/title/80075178
This film did incredibly well internationally with good reason. It's simply a very well told story with an incredible soundtrack and beautiful animation. This is a "Freaky-Friday" type story where the two protagonists body swap at seemingly random intervals, but memories are hazy after re-awakening, impeding them from connecting outside the swaps. Unfortunately it's not available for streaming to my knowledge, but it can be rented from amazon.
I'd also support Full Metal Alchemist as series like that and Ghost in the Shell are what got me into watching anime in the first place. Others have already touched on it!
The movie isn't currently available to stream on Funimation. There was about a one-month period when it was, but it was taken down some time ago.
You'll need to either buy the disk, or pay a relatively small fee on Amazon to buy or rent digital rights.