Well alot depends on the tractor and wheel size.... but Im guessing yes. a 10.5 would be OK. You looking at turf's, or ag styled? the ag tires seem to be a little narrower.
The 9.5's are a real oddball... Too bad realy... becouse I think its a perfect size for a lot of the smaller old YT, and GT's that came with 23 8.5x12's. Not to wide, but not to narrow. I hae a set on my 1970 JD112, and they fit perfect.