Well fennel is popular in Italian sausage, that is certainly a love hate herb
but they add variously a whole host
garlic,
Parmesan cheese-totally yucky,
red peppercorn is another love hate
bay leaf
wine red white or other alcohols can cause a pungent flavouring
to be honest there is any number of contenders,
salamis often have whole seed, pepper is usually recognisable, but nutmeg too can strange to some seeing it as a sweet Xmas thing,
I once bought an expensive salami sausage with blue cheese….I love most blue cheese but these tasted like 200 year old condemned smelly socks, no one else would eat it either,even the dogs were like W T F!
now I like
Milano, white white white
Fuerte is nice
Spinatto (i think I spelt it wrong) has paprika and chilli overtones which I love
the very red pepperoni is a love hate for some,
I buy small ones cut in half or quarters cook letting the paprika leak into the oil and fry an egg in the oil yum yum,
pepper encrusted nice if you like the strong pepper finish
cheese encrusted - yuk
garlic encrusted ok in a mix,
napoli is a basic favourite,
but the above are mostly designated as salamis,
the Italian sausages come in a whole host of flavours, they tend to be more finely mushed and punky perhaps with chunks of fat or strong herbs.
if I. Honest the salamis are more my style than the specific sausages one of my cookbooks has a host photographed and named I’ll look for it and add it ……when ican be bothered to get up lol