You sound like someone who's be trapped in the loop so long, and you just woke up and realised people on PS4 only play bad AAA western games.
Jokes aside, there are a pretty good assortment of classics on the system (now), even if they don't get the attention they deserve. Plus even AAA devs drop the odd gem (Witcher3, Doom, Overwatch) every now and then. You'll be fine.
If you haven't tried Bloodborne or the Yakuza series, that wouldn't be a bad place to start. Horizon is supposedly quite good too, though that's hardly a cheap niche title.







