You know you can generate worlds with DF? No hear me out, in custom maps you can feed it "maps", so what works well: open excel, make a table as large as your map, conditional formating to color code it... And just fill out altitude for example... You can just do one, or you do multiple grids such as temperature rainfall, cursed-/charmedness etc...
The custom world creator will then compile the how many layers you gave it into map... And you know DF is really good at doing river and geological stratas... And also you can inspire yourself from world history and reroll it at will.
Hell if you're willing to commit to the DF fauna and flora... You might even be able to get some use out of giving all your dnd players access to legends mode... a fully fleshed oit world allready, just the names are hard to remember.
Furthermore I allmost forgot: There some third party tool I think it was legendsviewer? That can take the df map data and render something more drawn and less square with it, even got different filters for the different grids mentioned above... and IIRC there was one mode that compiled all of it into a pretty beautiful and watchable map.
Went to check what I did in the day... I did employ a bit of trickery... Superimposed the biome map with the DF map... that was the one I liked a lot.
You could further improve on this my colours were poorly blended now that I look at it... Also using different tilesets... And then you trace the whole thing on paper and draw it in super nice'ish map style if you're able.