I am sorry Laalynda, but at this time the only transfers offered for Classic are the ones Blizzard has put in place. Those are transfers from High population realms to a very specific low population realm. Each High pop realm will have a designated low pop realm to go to. Those transfers are limited time as well, not always available.
Transfers from Thunderfury only go to Arcanite Reaper.
You can read the full list of realms and destinations here, as well as the date the transfers stop.
Also note, this is not a Technical Support issue. Tech Support deals with issues that keep your game from installing or functioning on your computer.
If you wish to make a suggestion that Blizzard change the transfer destinations, you can make that suggestion on the Classic General forums. Also note, they MIGHT someday allow paid transfers in Classic, but that decision has not been made nor do we know when it might happen.