Recommend me a good path weedkiller

I am aware that a similar thread was created in 2013 but as it's 12 years old I thought I'd make a new one since there are now calls to phase out Round Up as well.

I'm just after a sachet type that you drop in a watering can and sprinkle on the driveway rather than a more concentrated weedkiller please.

 

I use Weedol Pathclear which works well for me on my block paved drive.