+1 for
SWISSSTOP GREEN pads.
Sure you can buy cheaper pads, (if that you meant by good value), but in terms of longevity and stopping power I don't scrimp on pads and as such these are good value IMO.
If you just want some standard brake block type thingies I've got
THESE Shimano Tiagra ones, or if you have the cartridges I've also got
THESE if you're interested.
Both sets are brand new, prices are cheap but I'm always open to offers as well
