Bonjour Brian and welcome to planDisney.
It looks as though you've only a few weeks to wait until you're "walking right down the middle of Main Street U.S.A." at Disneyland Park. It doesn't get much more exciting than that!
There's so much going on at Disneyland Paris right now - be sure to catch the
Disney Music Festival and
Tales of Magic nighttime spectacular, during your visit.
Although my family are frequent visitors to
Disneyland Paris, we have never hired a car before as we generally drive over, in our own car, or, fly and then take the
Magical Shuttle or, a Bolt ride-share service, to transport us between Charles-De-Gaulle or Orly Airport.
I have, however, done a bit of research for you and it looks as though Bercy (48 Bis Bd De Bercy 75012 Paris Xii, J FR) is the closest Alamo drop-off/pick-up location to Disneyland Paris, approximately a 35-minute drive away, according to Google Maps.
If you will be flying to Paris or, want to avoid heading towards Paris, to get to the Bercy location, there are Alamo pick up/drop off locations at both Charles-De-Gaulle and Orly Airports. These might be a more convenient option and are both approximately a 40 - 45 minute drive from Disneyland Paris, according to Google Maps.
I'm not sure if using an alternative car rental company is an option, or not, but,
Avis is an Official Partner of Disneyland Paris and they actually have a pick up/drop off location at the Chessy/Marne-La-Vallee train station (Gare Tgv Chessy, Place Des Passagers Du Vent, Marne La Vallee, 77700) which is located close to the entrance to Disneyland Paris - literally a few minutes drive away.
I hope that this information has been of help, Brian. Please do feel free to re-visit us, here at planDisney, if we can be of any further help with the planning of your trip.
Wishing you a magical holiday filled with memories which will last a lifetime!
Emma