A Silent Voice is great. On a side note, I’d also suggest the manga, too. It’s seven volumes, and is much like the movie, but has a larger story simply because time wasn’t as much of an issue as with a movie.
Ok, so, anime movie suggestions:
Almost anything from Studio Ghibli. My favorites of theirs are: Howl’s Moving Castle, Whisper of the Heart, When Marnie Was There, Spirited Away.
Anthem of the Heart. Don’t confuse that with Ghibli’s Whispers of the Heart.
Maquia: When The Promised Flower Blooms.
Your Name and Weathering With You. They are both from Shinkai, and slightly connected, though not so much that you can’t enjoy them separately.
If you’ve been watching the series My Hero Academia, I’d recommend the two movies based on the series, Two Heroes and Heroes Rising. On another note, there’s a third MHA movie scheduled to come out later this year.