I'm running into the issue that there is no way of searching for all of the adventures I own for specific maps that fit the session I'm running. So, for example, right now my players are in the Underdark, but I have no way of filtering tags for cave or underground or Underdark maps. I've used the same map for all the sessions, the Dripping Caves from Storm King’s Thunder.

Firstly, please consider this a suggestion to D&D Beyond to add search filters including tags so that we can find maps that are appropriate for the sessions we run.

Secondly, does anyone have any suggestions of which adventures published on D&D beyond have appropriate maps for the Underdark? I'm trying also to run a dungeon crawl in the Underdark so something Mind Flayer related would be helpful. Currently, I'm thinking of copying and pasting some matte pieces together taking a screenshot, and uploading that as a custom map. I would rather use an existing map if possible. I doubt an uploaded screenshot is going to look nearly as crisp as the selection from all the adventures.

Thanks for all your help in advance.