Becarefull with Payoneer because the TOS prohibit any activity related to "digital currency", so include cryptos with it. You could get your account suspended for this, because it surely includes the mastercard. Better safe than sorry
Tried a few times on Paxful, worked out good, though its a bit hard to trade every time with new user with new rules, that's why I though why not to try to make site where would be always one rules, and static comission instead of waiting when someone offer good prices on paxful. But yeah, agree that need to be carefull with Payoneer, and never say anything about crypto in payment descriptions.