I highly recommend checking out a shoe store that specializes in helping you pick a good shoe for you. I thought I needed a shoe specifically for walking, but the guy at my local store helped me find a running shoe that's great for me (walking, not running). I have lots of foot problems (plantar fasciitis and morton's noroma - they sound super gross, but they're just painful not gross LOL). He watched me walk without shoes and then with the shoes that he picked out for me to try. I found a pair of New Balance running shoes that work really well for me and that I've had no pain at all in.
Yes!! Loving all these suggestions! I would also recommend a few things. Consider the toe box, heel height, and stability factors of the shoe. If you've had a history of ankle issues, opting for more a "stability" is helpful while working on plan to address it. Otherwise check out the tread as well. I've heard great things about Adidas, New Balance, Asics, and Altra. Nike is great but tends to run narrow. Hokas are also a favorite for those who like the extra cushion. Shop around! Why not? 😉
I just bought a pair of New Balance 990's and I have to say they are beter than any of the other shoes I have. I have been walking 4-5 days a week about 6-8 miles and my feet have never felt this good. They have an orthosole and come in wide and extra wide which could be good for your diabetic feet.