We are trying to come up with a tree plan for a similar driveway except that we have stud rail both sides. We have had lots of different suggestions from different nurseries!
I would advise going to a specialist tree nursery.
It depends on what you want in terms of shape, colour and of course size.
We are happy to have quite a large size (10-15m) and want some nice colour, so liquid amber is one possibility Im considering. Evergreen oak also looks like a good option for us. Lime trees are the classic driveway tree but can get quite large.
Silver or golden birch are lovely and smaller in size. Cherry blossom is fab too, but DH wont go for it with the mess of dropping blossom in Spring!