For Hive (not HBD) you can VPN setup an account with Huobi .... there are daily limits and other restrictions but they are relatively high for a low-volume user. I'm scared now though thanks to ionomy so I am only putting anything in there that I intend to sell immediately and then withdraw to a self-custodial wallet right away.
I'm not sure if this is exactly what you are looking for and the swap is ONLY Hive/USDT
Can't you just use one of the other exchanges like Simple-Swap and Stealth Ex and then move it into your offline wallet? In smallish quantities? That's what I am going to do.
Yes, both work nicely