There’s one that’s getting very overlooked from this year. It’s called Kado: The Right Answer. I recommend watching ep 0 first without knowing anything about it but if you want a reason it’s a lot like Arrival but instead of aliens it’s an inter-dimentional being and instead of a “weapon” it’s the ability to provide infinite energy. It’s a really enticing political drama more than anything else but the twist in the first episode comes in really strong.
March Comes in like a Lion is also a really great story about family, feeling like an outsider and using shoji (Japanese Chess) as a medium to fill that void. Beautiful art, bitter-sweet story, good writing.
Kids on the Slope. It’s about the jazz scene in Japan in the 60’s. It is another high school anime but there is enough unique about it for that it that qualifiers like that shouldn’t hold you back for this one.
All are on Crunchyroll btw