Which are biggest domain selling platforms where you can have good 1v1 chat with domain seller / buyer?

I am looking for large domain selling websites where there are buyers and sellers and you can actually get a good 1v1 chat with seller. I don't mean submit an offer and then wait til they reply. I mean actually communicate with them via PMs or chat.

Is there anything like that?

here, BHW marketplace

KEEN-G said:

here, BHW marketplace

Click to expand...

I need larger platforms. Anything else?