Cordon or espalier?
I have a cooking apple tree that isn't earning its place, so was thinking of taking it out and replacing it with either a couple of eaters or plums, and as space is limited was thinking of growing them either cordon or espalier. I have a spot next to a decent wall to plant them. I know nothing about growing fruit trees, so would REALLY appreciate any advice re varieties, which method, pitfalls etc - help please!! xxx