I realize I'm a bit late to this party, but this was an idea I was mulling over. Charles II was very chummy with Louis XIV at the Restoration (actually most of his reign), and there were rumours of a French match for Henry. Problem was that Henry refused to marry a Catholic AFAIK. Fortunately, Henry died and there was never any reason for his being Low Church to affect things.
However, I've found a girl the French might put forward as a proxy if they can't get an Orléans girl to London: Christine of Baden-Durlach. Her mother's the eldest sister of King Carl X of Sweden, she's Protestant so no reason for the ministers to get their backs up about ANOTHER Catholic match. She's from a pretty fertile family (1 of 8 kids, of whom 3 died in infancy), plus it gives a chance for diversifying alliances in Germany. Christine's lack of kids OTL may be because husband no 1 died within 2years of the wedding (perhaps not enough time) and husband no. 2 married her 14yrs later, when she was almost 40.
Just a thought