What languages are required to learn to be good at Objected oriented programming??

Answer 1

OOP is a part of programming lenguage. Lenguages like python, c++, java, etc. have it. So it's not about knowing a lenguage to be good at OOP, it's about knowing OOP to be good in programming lenguage. Also lenguages like C doesn't even have OOP and they are still very popular.

Answer 2

No specific language is good for learning OOP, it has been observed in many languages, so a lot of the languages you know today, like python, java and c++, have object oriented programming.