Try going here:

https://ffxiv.consolegameswiki.com/w...stasha_Seagrot

Scroll aaaaaaall the way down to the bottom and you get a full list of all 4-man dungeons.

Next, go here:

https://ffxiv.consolegameswiki.com/w...mbers_(Extreme)

And scroll all the way down to the bottom.

Voila. List of every single dungeon and trial in the game. In fact, they are even in chronological order in which you normally should clear them.