I am rawly planning from April to August/September 2018 a round trip from Northern Germany along the North Sea and Atlantic coasts down to Gibraltar, way back more or less along the Mediterranean coast and through France (Ardèche, Rhône and Saône valleys, Alsace) back to Germany. First approach: https://keeponmoving.plic.de/2017/11/01/planned-iberia-cycle-tour-2018/ (I'm still gathering informations on recommended routes).
My cycle touring experience so far: A first solo tour around the Baltic Sea in 2017 (7,250km in 98 days). https://keeponmoving.plic.de/?post_series=baltic-sea-cycle-tour-2017
I'm easy going regarding daily mileage, route changes & accommodation (wild camping, campsite, warmshowers, guesthouse etc.)
Spoken languages: French, German, English and some Spanish.
Travel companions are welcome to join me on any part of the tour.