Deodorant has stopped working?!

Title says it all - deodorant has given up the ghost and stopped working.

Long story short. I had this happen around a decade ago with antiperspirant but found success with 'natural' deodorants based on baking soda.

Fast forward to now, the baking soda has given up. Incredibly frustrating, as I am sure you can imagine!

So, I am looking for some alternative suggestions/active ingredients to try. Not antiperspirant. I would just love it if I didn't smell 2 hours into the day...