None. If I wanted a game on PS4, I'd just buy it for my PS4.

Well duh, I know that. But MGS4 is still exclusive and no platform other than PS got the original MGS1. I would love a collection for Switch. 

Persona 5 just needs to come to Switch in general, but I have heard some people say they payed to keep it on PS. Whether or not thats true, I want it on Switcheroo!

Knack for sure. I think Knack 3 will be a multiplatform game so a Nintendo port might be in the books.

I'm not entirely sure if they are owned by Sony, but it's either Wild Arms or Arc the Lad for me.

Is this a troll post? Or...? Like are we just having some fun or do people seriously believe the whole “Sony third party for Nintebdo” thing?

It's forgotten that Sony music always published games for other platforms. They were called Imagesoft back in the 90's

https://en.m.wikipedia.org/wiki/Sony_Imagesoft

Probably knack or jak or rachect something kid friendly or a jrpg

Cuphead

Demon's Souls, Bloodborne and The Last of Us.

The Kingdom Hearts titles which are being held hostage.