Some alternatives that know of may work. They aren’t as strong as ambien so may have to take more than 1. I’m in the same boat as u, take sleeping pills to avoid narcotics.

Valerian root is relaxing, for me doesn’t work on its own
Magnesium glycenate has many benefits besides sleep so it’s a good one to have in your cocktail.
I used to take melatonin every night but read some studies that dissuaded me away from this. I think it’s best for jet lag, shift workers syndrome or occasional use.
CBD and/ cannabis I have had good luck with, go to a dispensary and tell them you have neuropathy and want to sleep. There are many strains
I would recommend against long term Benadryl use
Chamomile tea
Tart cherry, I don’t like the taste
Try lavender essential oil on your pillow. Just a little
L- theanine

Other avenues to try include meditation, avoiding naps, limiting screens before bed,

None of them gave me a full nights sleep, but they help. I’m now on belsomra