I recommend the plugins from NIK software. Fairly recently Google purchased NIK software and the good news is that the entire suite of NIK plugins are now available for $150. This is a terrific deal.
Why do I like them so much? Well you can get to a great result with your images without wrestling with the Photoshop learning curve. If you are clear what you are going for, this is the best package out there.
When I first discovered Viveza, part of the package, I bought it after a 15 minute review. I paid nearly as much for Viveza as what the entire package is selling for now. There is much more in the total package.
If you love black and white, there is nothing better than Silver Efexs Pro. It has won international awards. Part of the package. So is HDR. Noise reduction. Sharpening. And so on.
Know this. I don't take money from anyone for an endorsement. This set of plugins runs in Photoshop and Lightroom. You will find these plugins indispensable tools for your entire work flow from noise reduction to sharpening. $150 is a steal. I paid $400 (that was a steal). These plugins will elevate your work to another level and they are pretty easy to learn.
Do the free trial and prove it to yourself. Once you get them, you will buy them.