All Submissions within Notifications would be your best bet:
How do I set my Canvas notification preferences as an instructor?
Canvas Notifications PDF
With the different options in Notifications, it can be pretty easy to overwhelm your inbox. Because items that need to be graded are automatically added to the To-Do list, I have opted out of receiving an email message or push notification. That way, the notifications I definitely need (like submission comments, inbox messages, and global announcements) don't get lost.
