Lewwyn and Magic should settle in place. Even disregarding the fact it would save their warrior the A spot is better IMO - 1t earlier city, doesn't kill a forest, immediate trade connection, more cottage sharing with cap, cheaper maintenance. That's a lot of points in the pro column!
There are 3 advantages of settling 1 tile north. First that we get 3 more land tiles in our border, but by the time that becomes relevant we can settler a filler city for them in the north. 2nd they don't need a border pop to get the silks, but Calendar is so far away that factor is not worth much IMO. 3rd they slightly improve the location of a filler W of the cap - again this isn't something they should be settling for quite a while.
There are 3 advantages of settling 1 tile north. First that we get 3 more land tiles in our border, but by the time that becomes relevant we can settler a filler city for them in the north. 2nd they don't need a border pop to get the silks, but Calendar is so far away that factor is not worth much IMO. 3rd they slightly improve the location of a filler W of the cap - again this isn't something they should be settling for quite a while.