IF Jo-Ann's or Hobby Lobby have their 99 cent pattern sale going on -usually limit 10 (I give other monies and they go in to buy them up to 10 lol) its a good way to stock up on 18" doll patterns .. There is alot of free patterns online as well.
I also have the 30 minute patterns by Sewing with Nancy for the dresses (easy peasy instructions to follow).