Try frozen waffles or a vibe teether. I’ve heard green onions helps with teething to chew on
I make a chamomile and clove tea and keep it in the fridge. When needed, I take a washcloth and soak it in the tea, squeeze the excess and give baby. It's cold, clove has a lot of good properties including numbing and anti-inflammatory and chamomile soothes in general (which is why so many people do chamomile tea at night). Babe sucks on the washcloth, chews it, and it doesn't leave a mess or anything. It's worked for both my boys.
I have froze some of my son’s purées and let him suck on them. (Froze them in dots). My son likes this carrot he has because it’s solid but he can still bite on it.