If i were to run the Japanese version on a modded SNES Classic, using SNES9x emulation (instead of Canoe), what would the appropriate category be?

Emulator

I would recommend using a NTSC-J rom of SMW on your SNES Classic, I thought there was an easy way to play any rom or hacks on a modded classic. I could be wrong as I don't own one, but that would be a better option than emulating on an emulator.

The only benefit to emulating snes9x on a classic would be the ability to do any form of ACE that can't be done on the regular hardware to my knowledge. Putting an NTSC-J rom as Umar says is easy enough. If you need any assistance with that don't hesitate to ask.

thanks everyone! I'm new to this. appreciate the advice