For RAW conversion I use Canon's DPP, version 4 I think is the latest, it has chrominance and luminance noise reduction sliders that you adjust per photo as needed.

I usually just do minimal noise reduction in DPP 4 to start so as not to lose too much detail.

In Phohoshop, if needed, I will use Nik DFine or Topaz DeNoise but usually on the background only.

On my bird images, if they need sharpening in post, I will only sharpen the bird or part of the bird and nothing else.

I have also heard from reliable sources that Neat Image Pro is an excellent noise reduction product.