Sparkletron's Terraformers is an excellent worldgen mod. Unfortunately, due to how it works it can dramatically increase the loading time of heavily modded instances. This is a really gross hack that adds optional dependencies on most mods, causing this mod to effectively load last (also moved the data code to the data-final-fixes stage).
This shouldn't cause too much of an issue with mod compatibility since there are few mods that mess with noise functions and elevation generation settings, and those that do don't tend to change others.
Similar to the base mod, this mod is Unlicense'd / public domain.