https://www.curseforge.com/minecraft/mc-mods/yungs-extras

A myriad of structures, features, and vanilla+ content. This mod is a collection of upgrades to vanilla Minecraft that are each individually too small for their own mods, but together create a nice finishing touch for your mod pack. It's the cherry on top for any mod pack.

It adds some small structures while also improving existing structures like the desert well. The mod is compatible with BYG as well.

In it's current state it's a no, I'll keep tabs on it though :)