I have 9.5 " rough in and concrete floor

Can you recommend any toilets that can be installed in the subject situation.

Toto's that use the Uni-fit adapter nominally have 3/4" behind the tank, so if you buy the 10" adapter (it comes with a 12" one), it would probably fit. Note, because all of the toilets that use that adapter have a skirt, the water supply must be out further than with a normal toilet. This link is for one toilet that would fit... http://totousa.com/admin/upload/pdfspc/s-ms874114sg-0308.pdf

I have one of these in my master bath and it's been working fine for about 4-years now.

Recently had a Soiree installed using a 10" unifit adapter on a 9 1/2" rough in on concrete floor. The plumber had to cut a small notch in the baseboard for the footprint but all else went smoothly. The skirted design just takes a little more room but you can't see the minor modification unless you stick your head behind the toilet....which I don't do often

Mort