Millies woflheart make some good ones, young lab is on the fish ones, they do honk though!
At Tesco we sell Waggs treats now, they look good but I am not sure if they have bad things in them. Young lab like the chewy duck stick things but the dried beef bits take about a second to swallow whole.
I make my own pilchard cake
1 large can pilchards in tomato sauce
1 egg
10-12 dessert spoons gluten free plain flour
Put pilchards in a magi mix with the egg and blitz until smooth. Slowly add the flour
Line a 1/2 size baking tin with parchment. Heat oven gas 6
Put mix in tin and smooth over. Bake until firm on top and sounds a little hollow to tapping or you can't stand the fishy smell any longer.
Turn out on a wire rack
When cook cut into very small chunks
Keep in box in the fridge or can be frozen
Dogs love it