Ebay maybe?
I know Englund Marine has a bin of them, but my guess is you are looking for a 'deal', and not pay retail?
The long term way to save money, but you do not really, is to cast your own. That way you can make what ever you want and modify them to your liking.
I stopped trying to sell any of my cast stuff because it seemed people thought I should sell for scrap lead prices. Or maybe pay them to take them off my hands!
I do occasionally see someone on Facebook Marketplace selling bulk weights and lures.
