Due that you asked about recommendation for OnePage Dungeons I would like to point out the Dungeon Backdrops of Raging Swan Press. These are Dungeons but you have to fill in some blanks yourself e.g. Random Monster and Treasure (the preview provides a pretty good idea about the product). Im planning to combine these with Four Against Darkness but somehow did not find the time to actually do it yet. BTW thanks for your content. It is entertaining and also inspiring to start an own journal for dungeon exploration instead of just a few notes on paper.