If you are using mono for line, I think you might want a rod with a little more backbone as the line will take the shock of a fighting fish. No real need for hook setting power when trolling. However, if you are using any kind of superline with leadcore or similar non-mono/stretching line setup, perhaps a nice 7-8 footer with an even parabolic bend to it to absorb the fight.
Big fan of the properties of the rod and not so much brand loyal. I do use the Shimano Talora rods myself. But first I’d tackle the question to the line type you want to use.