It would be a good idea to have a founder that is either close to or older than adult is a good idea too as you need them to provide the tombstone before your heir turns elder.
If I were playing in Sunset Valley I would probably go for someone like Tori Kimura and have her marry either Gobias Koffi or maybe Gunther Goth or Nick Alto just for something a little different.
Or if you want to start of with a male founder apart from the ones that Pam has mentioned you could use Stiles McGraw and marry him to Zelda Mae,Jamie Jolina or if you are not adverse to breaking up a marriage try Vita Alto or Ilianna Langerak just for fun.
I hope that helps personally I wouldn't go for the more obvious choices of Chris Steel or Agnes they can feel overused.
Rachel