Need $200 converted to western union at best rate possible.
Western Union isn't great for the sender, they'll charge substantial fees. If you're willing to take the hit for the fees, then you're more likely to get someone to take your offer. Like me, for example.
I have a Western Union account, and I would take this offer if you are willing to send first and cover the fees.I can also send via Zelle or Revolute, neither of which charge fees.
Just to touch on the subject of p2p exchanges, I recommend Bisq.
ETA: got my fix on bisq.