If you don't know it already, I am a big admirer of Rob Donoghue, a game designer, game master, and person of extraordinaty quality.
He has a blog over at The Walking Mind. He recently started to write about his new D&D 5e campaign, The Thaw. If you want to observe a process of capaign creation and blending that with character creation to make some very rich storytelling material, reading Rob's write ups so far are really worth a read.
There has never been a game that Rob would not tinker with, just like every great game master, so he offers some especially interesting twists on D&D 5e character creation which could be easily ported to other games like 13th Age. He also creates some terrific visual and tactile artifacts for his game to help himself and his players as the story developes.
It is much better to go see for yourself.
I also wanted to shout out to Lex Starwalker, of Starwalker Studios. I have recently started to listen to his Game Master's Journey podcast, and I find it to be very interesting a thought provoking.
In an ideal world, Lex and Rob should get together and have a conversation, like on a podcast (right?).
In any case, both these gentlemen have lots of information, ideas and advice worth taking or appropriating or stealing for your games.
Check them out!