Leather shoes can quite easily be redyed to change the colour. Here I change colour from hot pink to smooth mahogany using Saphir dye, with great results!
Handmade Men's Shaded Tan Double Monk Strap Business Shoes, Real
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Redying shoes - Changing the colour of leather shoes - Learn DIY
Womens Barefoot Shoes, Wide Toe Box Comfy Shoes, Brown Color
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Polishing your shoes is the frugal choice : r/Frugal
Workshops — Colorado Shoe School
Redying shoes - Changing the colour of leather shoes - Learn DIY skills!
American Craft Council