Hey man! First and foremost, I apologize for taking so long to respond. Somehow I totally missed your message.

You can buy $HIVE on Binance, Bithumb, Gate, Upbit, and a bunch of other exchanges. You can view the full list here.

You can also buy pHIVE on PolyCUB and unwrap it into HIVE as explained here.

Finally, you can buy $HIVE through Blocktrades by visiting your Hive wallet and clicking ''Hive''-> ''Buy''.

Hope this helps!

Should you need more info, let me know!

Have a good one :)