Charles de Gaulle (1958-1962)
Gaston Monnerville (acting, 1962)
Antoine Pinay (1962-1969)
Jean Lecanuet (1969-1976)
Valéry Giscard d'Estaing (1976-1990)
Édouard Balladur (1990-1997)
Laurent Fabius (1997-present)
Nobody has anything to say?
Based on de Gaulle losing the 1962 referendum, no?
Or dying. It doesn't really matter.
Why on earth Lecanuet would have won in 1969 ?
Either you've got a conservative reaction to 68 or the left is able to take power (hence my own Mendès in 1969: had he followed the appeal of Charléty...).
And Lecanuet wouln't have been again candidate in your series, as Giscard AND Lecanuet wouldn't have competed together.
As for Balladur winning after 14 years of Giscard, very doubtful.
In my series, I've tried to pick, for each election year, the best placed politically and electorally.
All Presidents would be elected by the electoral college, remember. This would result, I think, in a string of generic center-right Presidents, with the occasional SFIO President (quite like the Fourth Republic).