Where can I sell my photos?
This is a very broad statement. The short answer is anywhere people will buy them. But to be less pedantic do you have a target market are you trying to sell to, the public, magazines or other media.
There are all the stock photography sites who will vet your images. You can set up your own website and there are many hosts who provide e-commerce tools. You could print them in postcard format and sell them as postcards or many other gift items. You can approach galleries and try to get space to exhibit and sell there.
Nikkor AF-S DX; 18-105 f/3.5-5.6G VR, 55-300 f/4.5-5.6G VR, 35mm f/1.8G
Speedlight SB-700 http://keystrokesukimages.com