there are one or two models for every brand pretty much.
the ultras mentioned above will probably be on the most extreme end of the soft-to-stiff boot spectrum
try looking at the ronix relick boots
LF ultras, vantages, shanes
CWB Vapors i think they are called
Slingshot P.B. Floyds
there are others, but these give a good list to start from.
go to the local store and try what they have to offer on inside the store and get a feel of what you like