I would definitely reccomend geography, like the others said, it is more versatile and gives a broad range. psychology is interesting sure but not necessary for any course, and if you want to do an essay subject, english or history would be far better in my opinion. But geography is a nice blend between stem and humanities so overall I would reccomend it. Just bear in mind degrees like law require a more hard -core essay subject usually, but given your other choices I don't think that appears to be something you want to look into.