New and top day are my picks as well for sure. New is for when I'm feeling social and want to dive right into fresh conversations, while Top Day is great for checking out what went on and allows me to pick up converstaions that have already formed.
I definitely recommend not sticking to one, but pick 2 or 3 to switch between, depending on your mood. This way the new posts get bigger and the big posts stay active. We're all in this together, let's keep lemmy living!