I've played most of the "big games" on the PS2, and quite a few of the more "obscure" ones. However I'm kind of at a point where I have ran out of games I've heard of and since the library is absurdly huge I am at a loss of where to start.

What games would you anons recommend, or at the very least is there anywhere that would be a good place to start looking?

As a starting place, if it had a "greatest hits" release, I've probably played it.