Well alright!

I have the Super dungeon homebrew I did years back (probably not my best work but people liked it) involving lots of shenanigans in-town and an old fortress no one could directly siege and all it's inhabitants supposedly died inside with their riches.

Then, there is the one with a lot of magic items and focus on less duneon-esque places to do battle

And finally, I could do something costume tailored to your characters if you'd prefer.