Smirc's Dungeon regularly publishes hand-drawn maps that can be used for any fantasy tabletop roleplaying game, so not only for D&D, 5E, Shadowdark, Dungeon Crawl Classics, Wildsea, Forbidden Lands, Pathfinder, Borg, Cairn, but also for any other OSR system.
Not only maps are published here, but also OneShots and adventures for 5th Edition/5E, many of which are available for free download here.