Does Israel have a prophet or an oracle of G-d today like Isaiah or Elijah in the past?

Not that I know of. The Talmud (Yoma 9b) says that Chagai Zecharya and Malachi (beginning of second temple period – some 2400 years ago) were the last prophets and since, we haven't had anyone that proved himself to be one. We know king Mashiach will be, and we are waiting patiently for him to come.