Which dialect in which region?

So I’m from Muzaffarpur, Bihar. Here we speak Bajjika.. Can you all share which dialect you people speak also state your region? So that I get an idea.. there is Maithli,Anggika, Bajjika, Bhojpuri and many more… Also if you can share the difference between all these dialects. in Bajjika we also use chhe then how is it different from Maithli ? How different is Angika? I understand Bhojpuri as it has ba, bani, rahua….