Here are lists of Maps, D-Maps, entrances, and dungeon items so far. The update date is on the pastebin file. Generally, the D-Map/ Map list will be current. The Entrance list is not updated as frequently.
Comprehensive list of All D-Maps, and Maps in the Quest. (Updated 5/18/2020)
List of all Entrances on the Overworld, and where they go. (I'm gonna be honest. I dunno how useful this was, but I kinda don't wanna update it . The first Link is more relevant anyway.)
Klop's Dungeon, and Mini Dungeon list:
Lut's WIP Line map (we finished the OW by now but this is still useful):