I made one leading reservation with 3 different people on it (myself, DH, and DM) so I can book ADRs under any of our names. (I have access to all 3 MDE accounts.)
We have relatives joining us at Narcoossee’s so I had to break our party of 9 into two groups. I’ve been successfully booking 7 everywhere else so far.
I just spot checked the following at 60+10 days out for the maximum party size that had availability.
Teppan Edo-16(!)
Oga’s-10
Biergarten-10
Cinderella’s Royal Table-8
Beaches & Cream-8
Be Our Guest-8
California Grill-8
Narcoossee’s-6
I tried doing a blanket search for anyplace available with seating for 11, and Teppan Edo was the only hit.
Seating for 10 added the following:
Biergarten
Homecoming
Frontera Cocina
Oga’s
Shula’s
Nothing new at seating for 9.
8 is where it gets interesting.
https://drive.google.com/file/d/1EvYrGx26iOxKlK8QZUZFkGcE0sbUiiK6/view?usp=drivesdk
The top half (anything you can see time selections) had availability for 8. The rest didn’t, so I’m guessing that’s a ballpark list of those that max out at seating for 6.
ETA: For Morimoto Asia in Disney Springs, I booked a table of 7 through OpenTable and then called the restaurant directly and they were able to modify it to 10 for me.
ETA2: Please note this list was generated March 2021, so not all restaurants had re-opened yet.