Raw feeding tips needed

It seems Boss is going of his minced raw food but still loves his chicken thighs.

what all whole bits can i get from supermarkets that dont cost a lot and he will be able to eat. At the minute i but a 4kg bag off drumstcks, legs and thighs and he loves them but he was only getting them every 3 days so diet wasnt just chicken, iv read beef heart is good but i can only get it sliced and he likes a crunch in his food.

would somebody please give me a list of what all i could get from the likes of tesco/asda/iceland? cheers

At my local supermarkets i can get

lamb hearts
liver/kidney
lamb bones
beef bones
pork ribs
lamb necks

my tesco also has a halal bit where i get loads of bits

Why not order form a proper raw supplier? much bigger variety and much cheaper in the long run