I think we should focus more on what variations to play and ultimately make a list
I'll start
Bojutsu - Relentless. I can't outrange him with slasher or zone him
Kuatan warrior - not Relentless. pursuit and lake mist are useless, dark pursuit can be dealt with. An opportunity to use Unstoppable since he doesn't open up easily
Dragon fangs (or manicurist) - Slasher. With earthquake and chest lunge out of the picture, goro wants to close in. You can keep him out better, bait jumps and anti air
Tempest - Slasher. b2 and jump attacks are lifesavers against jump lao. His roll wake ups punish even dark pursuit up close from any setup
Aftershock - depends. Slasher can air to air his "aerial earthquake attempts. Relentless can anti zone and space him
Grandmaster - Relentless. pursuit and lake mist are the only things that can get you out of this. I am personally considering picking a different char for him alone
Commando - Slasher. bare handed jason works too, but with highly punishable whiffs in kano's parries and throws, slasher hurts
Master of souls - Slasher. Punish opportunities, air dependant
These are some matchups I feel sure about. Update the OP if you want
@macro