When choosing the shoes for my kid, I realised they must tick all these three requirements:
1. Zero-drop (flat, no heel at all, not even a tiny one). Because of this:
(photo credit: How the Heel Affects Alignment: from Every Woman's Guide To Foot Pain Relief)
2. Flexible sole - so that the shoes can follow your natural move, like this:
(photo credit: Tikki Shoes)
This way your foot uses the muscles needed in order to walk correctly. We already know all the muscles, joints and ligaments in our body are connected and the chain is only as strong as its weakest link.
3. Wide toe box - you actually let your toes do the work they were supposed to:
(photo credit: The Drifter Leather)
There are so many resources out there, you just need to start. And try your first pair. And you'll never go back. I'm one of the lucky ones, I wasn't in any kind of chronic physical pain, but I still feel better since walking in barefoot shoes. My posture is better, my bunions enjoy their freedom, I use my muscles and I walk better. I know it sounds weird, but these are just of a few of the benefits. Just try one pair of barefoot shoes.