Bread suppliers in London of the Hoagie roll and deli sandwich rye bread

Hi there

Does anyone know where i can find these breads?

I have been looking for a bakery/supplier of an authentic 'Hoagie roll' or something close to it for a long time and have had no luck! 

Also looking for a light rye (like you see in New York delis for sandwiches).

Have managed to source the rye but not 100% satisfied with it and have seen better out there, i have just had no luck finding the bakeries that supply it!

Any advise or info would be greaty appreciated! 

Thanks for reading