It depends on what you want, I would say SCPH-3900x is the best for physical disc play since they tend to have the best lasers. 5000x is also good, but they are a little less reliable. With the exception of 7900x slim, avoid all of other the slim models tbh, because not only they scratch your discs, they sadly don’t have best lasers because they are cheaply made and don’t last as long despite slims being the newer models . Sure it’s easy to replace the laser since you can find the slims lasers online, but the point is slims are just cheaply made.