This is the deodorant I use (when I use one):
Crystal Mineral Deodorant Stick
https://www.thecrystal.com/products/mineral-deodorant-stick-unscentedIt only has one ingredient: Potassium Alum (Mineral Salts)
about
18 years ago, I switched from Mitchum (deodorant and antiperspirant) to "natural" deodorants (not antiperspirants) and went through a period of smelling bad, as my body adjusted.
I gently exfoliated the skin under my arms and tried not to use any deodorant on days when I could avoid it, such as when working from home or on weekends. Eventually, the smell subsided.
Over the years, I've tried a variety of products. Many of the "natural" brands were full of numerous ingredients and did not work for me. I've been using the Crystal deodorant for many years and I don't plan on changing.
Most of the time, though, I don't wear anything.