A long time ago I travelled to Sedona from overseas to spend time doing my Spiritual Questing - there was a group of us who travelled together. We also went to South America. Sedona was not actually the place where I had my most UFO sighting experiences. Sedona was where all the energy seemed to swirl - I had some astounding spiritual experiences, but this was a few months of complete personal focus on a specific intent. Once out of the area, then I started to have visions and see the most astounding things.
I hiked Canyon de Chelley and stayed there overnight (had to get permission and have a ranger escort the stay) but the night skies there are amazing, but even more so was the silent landing lights we saw in the area and not that far away. Hugely bright lights!
I don't know what its like there now, but I suggest to get out into areas that are far less trodden.
Sedona though, would be a good base (location wise).