I have tried pretty much every no slip work boot/shoe on the planet. For my broken crooked burnt flat feet these are the best. SAS (San Antonio Shoes) Guardian.
https://www.sasshoes.com/mens-guardian/2110.html
They look like something straight out of a geriatric facility, but they get the job done. Keep your feet comfortable through long shifts. A little expensive, but they last longer than anything else I have tried as well. I replace them about every 15 months. My feet wear shoes unevenly, so as soon as the non-slip gets a bald spot, I move on. They're available from all of the usual online shoe outlets.