Zizou seems like he'd be a perfect fit for the French national team job if Deschamps wants get back into club management and Zidane wants something less demanding.Conte or Poch to Madrid makes a lot of sense. Poch is more of a builder, but Conte can whip almost any squad into shape.
Zizou had to be coaxed into these past couple of years (made easier by paying him $10M annually) but I think he takes a nice long break.