Hi @Hany505 ,
Hope I'm not too late to this.
I'm not sure of your taste but if I were going to NY I would visit the following Peter Lugers Steak
House or Gallaghers Steakhouse, Cosme, Le Grande Boucherie or Olio e Piu, or Nuovo York Pizza.
For LA I would look at Bavel, Damian, Bestia, Girl and Goat, Villa's Tacos, Guisados, Matu Steakhouse, Queen Street, Badmaash, Tsubaki, Oriel, Donna's, Sugarfish or Nobu.
You can also look at Eater New York or Eater Los Angeles.
Safe travels.
@Jonathan 2725