Nearly anything can be considered, as long as you stay away from plain ones. As you may know already, interior blogs are full of images with zigzag // stripy moroccan azilal rugs with tones of cream and black. Adding wooly texture too. Then there are other rugs with pattern and colors, for instance today I saw loads in West Elm.
I wouldn't put a Persian but that is just me. Not sure why but I don't think it'd work well.