I have never tried Brain, but would love to.
Tripe? You should try mu Tripe Goulash (-soup) or Tripe Porkolt.
Porkolt is what most people call goulash outside Hungary.
Pan fried liver, with well panfried onion ( lots and lots!), steamed potatoes, Worcestershire sauce ( Lea & Perrins UK made original).
Kidneys? Panfried on butter, Creame and English mustard sauce...
Not fond of Sweetbreads, any of them.
Yeah, forgot Tongue!!
Boiled Beef tongue... AAAAHHhhhhhh. Here they cost over 45 USD for one frozen beef tongue.....