I want to build a collection of PS3 exclusives. Suggestions?

Just got the steelbook editions of Killzone 3 and Dante’s Inferno. Also waiting for infamous 1 and 2, and Resistance 1,2,3 😌

Back in the day, I used to borrow accounts to play because I was just a kid. Now I want to build a full collection of exclusives - any recommendations for some hidden gems?