As the title says, right now who do you guys think will be the one who takes him down?
Now don't get caught up in who will fight him because the one who defeats him may not do most of the fighting. Kyoshiro could betray him after Orochi fights someone else, Orochi could fight someone and barely get away for someone like Momo to land a final hit etc. so it doesn't have to be who you think will be his main opponent this arc unless you also think that is who will beat him.
Now don't get caught up in who will fight him because the one who defeats him may not do most of the fighting. Kyoshiro could betray him after Orochi fights someone else, Orochi could fight someone and barely get away for someone like Momo to land a final hit etc. so it doesn't have to be who you think will be his main opponent this arc unless you also think that is who will beat him.