Hello,
I would be up for some of the latter battles:
Arras, one of the short Yrpres ones, the 29 turn La Basee, or St Gond or Vitry (I have played Revigny and Ourqs). Either side is fine.
Remember to update to 1.03 and to click "default" in the opt rules dialogue to add optional surrender to the default rules (added as part of 1.03).
St Gond is a really fun scenario, which we did a lot of work on to balance, the Prussian guard can seem unstoppable but the French player has to play a clever fighting withdrawal.