If you are looking to find friends on Snapchat go here and post your username.
With the new April 6th, 2015 update we now have a different type of “Best Friends”. From what I understand the gold heart means that is your #1 best friend. In essence, that is who you send and receive the most snap pictures and videos from. For more on all the emojis on the new Best Friends update check out this resource; April 2015 Snapchat Best Friends Update.
I am not 100% certain if everyone can see this gold heart or not. I am going to scramble around and ask some of my friends that are Snapchat users if they see gold hearts for users other than themselves. I would imagine only you can see who your #1 best friend is but, then again, Snapchat did offer the three best friends before the January 2015 update.
Please feel free to comment below if you find out anything bout the Gold Heart or other emoji icons on Snapchat.