DungeonForcer

This mod helps with generating large amounts of dungeons in chunks. It adds client-side commands to visualize where to place blocks.

For a guide on how to use this mod, see this video: 

This is the same trick used by Docm77 in his recent video which inspired me to make this mod for 1.17

Disclaimer

I did not make this mod from scratch, I took andrew_10_'s version and updated it to 1.17, and added various improvements to rendering and mixins.