Sure, though major settlements and even cities in the past have been destroyed, some repeatedly until finally it was one plague or disaster too many and the place was abandoned. Certainly we can look back on where ancient man got easy to access resources like copper, tin, flint and the like…and presumably it should still be there in it’s unmined state, ready for us to exploit. Like I said, you’d definitely want geologically stable regions with a moderate climate and access to abundant resources that are also geologically close…close enough to get to after, oh, say a days travel would be best.
I’m sure there are plenty of planetary geologists, climate science folks and paleontologists and archeologists who could come up with many viable candidates to settle. I’m not sure if picking one that a city is in today or even in the past is going to be a great idea for an initial colony, though. Few places on this planet are completely immune from any sort of natural disaster, and most cities are situated as they are because they have a support infrastructure already, and they are there to take advantage of their location, usually for trade and the like. That’s not going to be a thing with the initial colony, and probably not for quite a while. At that point you are talking about folks permanently on this new planet and spread out geographically enough that using the portal is no longer really an option to get out of jail free.