I have not found great alternatives. Here are some I have tried with varying degrees of success.
Prescription:
Lidocaine. I had limited relief with lidocaine cream and patches. When they work, they work great, but when they don't, it seems hopeless.
OTC:
Bromelain, it never worked for me others swear by it.
Capsaicin cream, I had good results with this cream, so long as it the pain area is limited to small joints. In my case my hands.
Glucosamine, it never worked for me but again some people swear by it.
Turmeric, I have not seen any claims about this lately and it never ever worked for me, but I know years ago people swore by it. I would consider that the last option.