Imo Sony interactive would be the best (worst?) choice for a Japanese company in this situation. Don’t get me wrong, I have plenty of problems with Nintendo, but at the bare minimum, it feels like Nintendo at least understands more or less why I want to give them money in exchange for games. Meanwhile Sony is shafting basically all their Japanese studios and burning their reputation as being a good platform if you want to play Japanese games. Now it’s just xbox but without gamepass and marginally better controllers.