WARNING...read at your own risk.
If you are so inclined, try "Folk Settings." Folk settings generally start with a reference and then tweak to taste.
Want more black...turn brightness down lower than -1; try -5 or -10 (gasp!). OK it may not be reference and you may get black crush and you will not be able to run with the big dogs here, but you may like it.
However, if your entire movie is ruined because you missed a crease in a black coat, better stick with test...