Hi,
There are villa's every nook & corner of Doha.
It all depends where and for how much you are willing to take it.
Most of the Villa's are well maintained with all the required facilities & features - DO NOT TRUST ANY WEBSITE FOTO's TO RENT A VILLA.
You must enter Doha first and take my word, within a week you can fix a good place for you, provided you inspect the place personally.