Ariat Contor field boots!!! They have xs for calf sizes
Ariat Monaco Lx are a great semi custom boot that are the same price as parlanti but last a lot longer. I'm really tall and thin person so I have to have at least semicustom and I have never had a problem with the monacos.
I personally am an average height, but I also have very thin claves and I've always found that tredsteps are the best fit for me. Parlantis fit me as well, but the Tredstep Michelangelo is more durable and affordable. They are also quite comfy in addition to the beautiful fit. Hope that helps!