Maybe try some stiff shoe inserts (insoles) so you could wear any shoe you like. Haven't tried these, but found on a quick search: Amazon.com: Carbon Fiber Insole - 1 pc | Rigid Carbon Fiber Shoe Insert for Recovery | Graphite Shoe Insert for Foot Pain, Arthritis, Hallux Rigidus, Turf Toe & Mortons Toe | Stiff Soles W's 12-12.5 Men's 11-11.5 : Health & Household
Might also try a local shoe or sporting goods store.