Okay, so in this thread, we are basically going to take any character and try to guess what Spren Bond would fit them most. This can be any character anywhere, including dead ones. And yes, you count Kelsier as a Spren for funsies.
My addition is Elend and the Stormfather because.... come on, it fits. Elend is possibly the most honorable character in all the Cosmere, giving up his power when he could lie and keep it or take military control and had to basically be forced to take back the reigns. The Stormfather and he would get along great.