I have one pair of Wiha tweezers that are my favorite, but they are really expensive. Like $20 a pair... https://www.amazon.com/Wiha-44501-Professional-Dissipative-Allergenic/dp/B0009K3IAK/ref=sr_1_18?ie=UTF8&qid=1491399696&sr=8-18&keywords=esd+tweezers
I own some "PIXNOR" brand tweezers from Amazon, and while they will still bend they are much stronger and sharper out of the box than other cheap brands. I think they were like $2 a pair.
Have you tried the ones with ceramic tips? I don't own these particular ones but they look to be ceramic. https://www.amazon.com/Engineer-ESD-Tweezers-PTZ-41-Japan/dp/B002F9MQMO