Shires Avignon if a grackle with the pads behind the rings, really soft and padded! Or if not a grackle then micklem or micklem type bridle which are cheaper then the micklem but still just as soft and sit it the right places!
I would recommend PS Sweden. You can build custom bridles and they are really high quality and a good company to work with! Here is there simple design bridle. Pricey, but its a quality investment!
Here's the link:
I can recommend you 2 ones, with really 2 different prices: