I have been playing a lot of Season 11 ( THE NEW PALADINS ARE HERE, THE NEW PALADINS ARE HERE! ) Diablo IV over the last week or so and was looking for a good tier list of all the Nightmare Dungeons for this season since I always seem to be full of entry Sigils ( aka Dungeon Keys. ) Here is a good Google Doc in Alpha format for easy lookup:

https://docs.google.com/spreadsheets/d/1eh5tZH_lLS6Y_EkBmrG488EZiM1oa-d3QFMUofj-GEc/edit?usp=sharing