I need to check out the Asian and Mexican markets. There are a couple of each that I know of. That would be an adventure.
There is a butcher shop on the perimeter of a not so nice part of town. I shop there around lunch time. They sell plate lunches so there are a lot of people in the store at that time of day. Not going there after dark.
They carry unusual stuff and will cut to order. They have organ meats - liver, kidney, tripe, tongue, sweet breads, chitlins. I did not look but they probably have or can get ox (bull) tail. G loves braised beef short ribs - $1.59 or $1.79 per lb. $7.49 at Costco. I get pork shank cut to order when I want to make "Poor Man's Osso Buco". Less than $2.00 per lb. Other weird stuff - pig ears, feet and tail - both fresh and pickled. Chicken feet. Turkey necks and wings. Chicken and turkey gizzards, livers and hearts. Pickled quail eggs, local honey, jams and jellies. An assortment of pickled veggies.
Never know what I will find.