Other than the 3 already mentioned as extremely likely (Dear Evan Hansen, Great Comet, Come From Away), I have seen Amelie (in Berkeley), War Paint (Goodman), and Anastasia (Broadway). Based on my experiences alone and without seeing the others, I would give the edge to Anastasia. I was not a fan of the other two as shows although I was glad I saw War Paint for the leading ladies. Of course it's not fair to judge these two shows on their pre-Broadway performances alone but since I am not likely to see them again, that's all I have to go by. And since I havent seen the others (and probably won't) I can't speak to those.
From what I've seen and read, Dear Evan Hansen, Great Comet, and Come From Away are head and shoulders ahead of the other potential nominees. And they're all so different I honestly have trouble deciding who I think "should" win (although Dear Evan Hansen is the most likely to actually win, I think...)