The only high (16-1/8"), round bowl (26-1/4" front to back) that Toto makes is the CST733F Dalton.
I've used that for a number of rentals with small bathrooms.
The difference between the Drake and the Ultramax, is mainly that one is one-piece, and the other has a bolted on tank.
Performance is very similar.
The one-piece comes with a seat in the box.
The ADA models, are always elongated, 28" from front to back.
The bowls on the ADA are 16-1/2" high.