As many of us well know, there is a large game out there that most of my suggestions will come straight from, Dwarf Fortress.
The main things I was noticing and wanting while playing recently was a way to prioritize filling stockpiles/chests near workbenches, and I wanted to limit some workbenches to only use from certain stockpiles/chests and drop into others.
Another is a way to build stairs between mined out levels.
I personally like caves and underground cities, but connecting levels is very difficult because of the dividing roof that you can’t mine out unless you’ve already mined out the top layer or done some camera finagling to look up while in normal camera. I’m not sure of an easy way to fix it besides allowing the slice to increment by one layer instead of 5.