Runners world magazine says for pronation one should look for the following in shoes:
•Wear shoes with straight or semi-curved lasts
•Look for motion-control or stability shoes with firm, multidensity midsoles and external control features that limit pronation
•Use over-the-counter orthotics or arch supports
I only reference them since runners obviously put much more stress on their feet and ankles than golfers, but their tips have relevance to the footwear.
I will defer the recommendation to the FJ Staff as to the shoe with the most appropriate last.