I Use the channel mixer to produce a slightly bright grayscale image (in this case 60% red, 30% green and 10% blue).
Duplicate the Black & White layer and set the blend mode to Multiply.
Use a layer mask on the top layer and brighten up any shadow areas that are too dark by painting over them.
Adjust the opacity slider to your liking.
Once done adjust overall contrast with curve and sharpen image.
Add a color layer if you want a tint such as a sepia or selium feel.
May seem complicated at first but actually becomes pretty quick with quite a bit of control . In this case I also added a Gaussian Blur to the duplicate B&W layer, and for the color layer choose a brown with opacity at 7%.