Some tailwheel aeroplanes are a bit more sensitive than others but I'd certainly teach tailwheel differences concurrent with SEP renewal on any of the following ...
Chipmunk
Piper Cub (J3, L4 or PA-18)
Luscombe
C120
CAP 10
Jodel
I'm sure many others are suitable but I've refrained from recommending any I don't have personal experience of.
Others may wish to add to the list?!?
Happy landings
3 Point