This one's hard for me, I had a falling out with Japanese style for some reason. It's like the things they've grown to put emphasis on are the things I don't want them to emphasize in gaming. Fire Emblem: The Three Houses is probably the highest on my list, and I currently have a disgusting amount of love for the Final Fantasy 7 remake
I have mixed feelings on Neir: Autonoma and Persona 5, so I'd feel weird saying I think they're best, despite how much I like them, or at least liked them at the time
Nioh 2 is really good, but also has a one-track mind, though Code Vein was one of my favorite experiences this generation
Bloodborne is definitely up there, but was that less than 5 years ago? I thought it was 2014 (Just verified, it was not 2014, but it was also more than 5 years ago lol March 2015. 5 years and some change, but it's one of my favorite games of the generation)h
The Last Guardian, if only because it's the closest thing I'll get to playing another actual Ico game in ten years or so, but there's no other experience quite like it this generation

So
Final Fantasy 7 Remaster
Fire Emblem: The Three Houses
Bloodborne
Code Vein
The Last Guardian
And if Bloodborne doesn't count then I guess Resident Evil 7 or Dragon Quest Builders

One good thing about my weird tastes is that I'm actually enjoying European western games a lot more this generation