Many think of Optimus Prime partnering with Twilight Sparkle and Sunset with Rodimus Prime. Here's my idea; Sunny Starscout with Optimus Primal.
Here she is reacting to Optimus Primal coming to the rescue. While many react in fear to a giant gorilla beating the chest, Sunny reacts in awe and joy. She knows of Optimus Primal from legends and is very happy to see the virtuous leader of the Maximals. And she cheers on him protecting locals from enemies.
It be sweet if the two became pals. Both gentle giants. Both protective of others. Both clever and eager to learn. Both more concerned about hearts/sparks than racial purity.