not-so-newguy
Legend
The title. These dungeons will be placed within the Isle of Dread mini Sandbox. I use the term "dungeon" loosely. It can be any type of structure. PDF works best. From Gonzo to Gritty, all suggestions are appreciated!
I addition to his (wonderful) blank maps of all sizes, Dyson Logos has a handful of stocked dungeon adventures available for download on his site, lots of which are one-pagers of around 10 rooms or less. Check out the ones here, here, here, here, and here.
(None of those are explicitly statted for 5e AFAIK, but the nature of OSR retroclones means the relevant statblocks should be easy enough to swap in.)
I've only glimpsed at a couple of the dungeons, but these look perfect. Thanks!