You will have to go into forums that specialize in digital account exchanges. I've done it before and had a pleasant experience. Just pick someone who has good feedback, most of them will have significant amount of feedback if they are good merchants. Also, it will be helpful to check around those forums for announcements on certain members if they have honorable mentions, or even suddenly getting a bad reputation for one reason or another. It's relatively safe if you know what signs to look for, and it's a lot safer than using sites that claim to do so, in my opinion, because even some of those sites with a great looking interface turn out to be scam sometimes. So just be careful and research on anyone or any company you are thinking of transferring your balance to. Good luck!