It's an embarrassment of riches in terms of the quality of films out right now. If you want to give Manchester by the Sea a pass because of Casey Affleck's transgressions and have already seen Moana and Arrival and Moonlight (GO SEE MOONLIGHT FOR THE LOVE OF MIKE), I heartily recommend you give The Edge of Seventeen a try. It's been out for 3-4 weeks or so and is almost out of the local multiplex. I went to see it a couple of nights ago because the reviews have been great and I liked the trailer, and it's just excellent across the board.
It's a movie about a teen, but way better than most teen movies I've seen, and I've seen many. Even if it wasn't, it would be worthwhile seeing for Hailee Steinfeld's incandescent lead performance alone. Ever since True Grit, I have been wondering why she's not getting a complex enough role worth her talent -- this is it. She is in almost every single frame of this movie and she takes a character who is an angry, insecure, messed-up nightmare and manages to make her funny and heartbreaking and immensely sympathetic with all her warts intact. She bounces particularly well off Woody Harrelson, who plays her sarcastic teacher (with a gooey center, of course. It's not a fresh role, but he embodies it so perfectly.)